Link to USGS home page.
USGS HOME
Contact USGS

  • Assess
  • Prepare
  • Forecast
  • |
  • Activity
  • Products
  • Observatories
  • About


Alert Level: Watch Orange
2017-05-22 18:06:36 UTC





HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Monday, May 22, 2017, 8:06 AM HST (Monday, May 22, 2017, 18:06 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 32 m (105 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above and on the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Inflationary tilt continues at the summit this morning, in the latest DI (deflation-inflation) event recorded at the Kīlauea summit. The summit lava lake was about 32 m (105 ft) below the rim when measured this morning. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō has not changed significantly in the last 24 hours. No significant change in tilt has occured over the past day, however, a long term trend of slight inflationary tilt has been recorded on the flank of Puʻu ʻŌʻō cone over the past month. The sulfur dioxide emission rate from the East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō, with flow activity extending toward the base of the Pali. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. This occurred most recently on May 3. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Sunday, May 21, 2017, 8:51 AM HST (Sunday, May 21, 2017, 18:51 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 35 m (115 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above and on the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Deflationary tilt measured over the past few days switched to inflationary tilt this morning, in the latest DI (deflation-inflation) event recorded at the Kīlauea summit. Web cam images show that the lake level was similar to yesterday's level at about 35 m (115 ft) below the rim. Seismicity is within typical levels, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Latest available webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō has not changed significantly in the last 24 hours. Continued minor deflationary tilt has been measured on the flank of Puʻu ʻŌʻō cone over the last day. The sulfur dioxide emission rate from the East Rift Zone vents, has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō, with flow activity extending to the base of the Pali. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. This occurred most recently on May 3. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, May 20, 2017, 8:11 AM HST (Saturday, May 20, 2017, 18:11 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 35 m (115 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above and on the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: The deflationary tilt measured at the Kīlauea summit over the past 2 days continues this morning, and the level of the lava lake has dropped in concert with the tilt. Web cam images show that the lake level was about 35 m (115 ft) below the rim this morning, a drop of several meters over the past day. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō has not changed significantly in the last 24 hours. Continued deflationary tilt has been measured on the flank of Puʻu ʻŌʻō cone over the last day, mirroring the summit tilt. The sulfur dioxide emission rate from the East Rift Zone vents, has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō, with flow activity extending to the base of the Pali. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. This occurred most recently on May 3. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Friday, May 19, 2017, 9:03 AM HST (Friday, May 19, 2017, 19:03 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 32 m (105 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above and on the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Deflationary tilt was recorded over the past day at the Kīlauea summit, and the level of the lava lake has dropped in concert with the tilt. The lake level was measured at about 32 m (105 ft) below the rim this morning, a drop of about 17 meters over the past day. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō has not changed significantly in the last 24 hours, however, at 9:15 pm last night, a magnitude 3.2 earthquake was located SE of Puʻu ʻŌʻō at a depth of 7.2 km (4.5 mi). Slight deflationary tilt has been measured on the flank of Puʻu ʻŌʻō cone since yesterday evening, mirroring the summit tilt. This signal is riding on a long term trend of slight inflationary tilt recorded over the past month. The sulfur dioxide emission rate from East Rift Zone vent, has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show surface activity within the 61g flow field above, and on the upper slopes of the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. This occurred most recently on May 3. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Thursday, May 18, 2017, 9:55 AM HST (Thursday, May 18, 2017, 19:55 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 15 m (49 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Slight inflationary tilt was recorded through much of yesterday, but beginning around 8:30 this morning, deflationary tilt has been recorded. Over the past day, there has been no significant net change in the level of the summit lava lake, which was about 15 m (49 ft) below the rim when measured this morning. This is high enough to be visible from Hawaii Volcanoes National Park's Jaggar overlook. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō did not change significantly in the last 24 hours. A long term trend of slight inflationary tilt has been recorded on the flank of Puʻu ʻŌʻō cone over the past month. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show surface activity within the 61g flow field above, and on the upper slopes of the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Wednesday, May 17, 2017, 9:00 AM HST (Wednesday, May 17, 2017, 19:00 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was about 15 m (49 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Deflationary tilt began shortly after 11 pm last night, with little net change in tilt since early this morning. The summit lava lake was about 15 m (49 ft) below the rim when measured this morning, high enough to be visible from Hawaii Volcanoes National Park's Jaggar overlook. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: During periods of clear weather, webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō did not change significantly in the last 24 hours. A long term trend of slight inflationary tilt has been recorded on the flank of Puʻu ʻŌʻō cone over the past month. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show continued surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, May 16, 2017, 8:47 AM HST (Tuesday, May 16, 2017, 18:47 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was 17 m (56 ft) below the floor of Halemaʻumaʻu. The episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Inflationary tilt continues and the level of the lava lake has risen in concert overnight. This morning, the summit lava lake was 17 m (56 ft) below the rim, high enough to be visible from Hawaii Volcanoes National Park's Jaggar overlook. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: During periods of clear weather, webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The level of seismicity at Puʻu ʻŌʻō did not change significantly in the last 24 hours. A long term trend of slight inflationary tilt has been recorded on the flank of Puʻu ʻŌʻō cone over the past month. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta resumed following the May 3 delta collapse. Webcam views show continued surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Monday, May 15, 2017, 8:56 AM HST (Monday, May 15, 2017, 18:56 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu and at Puʻu ʻŌʻō on the East Rift Zone. This morning the summit lava lake was 28 m (92 ft) below the floor of Halemaʻumaʻu. The Puʻu ʻŌʻō episode 61g lava flow continues to enter the ocean at Kamokuna. Active surface flows persist above the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Inflationary tilt resumed at the Kīlauea summit Monday evening. This morning the summit lava lake was 28 m (92 ft) the rim. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: During periods of clear weather, webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. Deformation rates and level of seismicity did not change significantly in the last 24 hours. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Growth of a new lava delta has resumed since its collapse into the ocean on May 3. Webcam views suggest continued surface activity within the 61g flow field above the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

Ocean Entry Hazards: As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Sunday, May 14, 2017, 9:38 AM HST (Sunday, May 14, 2017, 19:38 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu Crater and at Puʻu ʻŌʻō on the East Rift Zone. Summit deflation began late Saturday morning and the summit lava lake level has dropped in concert. The Puʻu ʻŌʻō episode 61g lava flow continues to enter the ocean. Active surface flows persist above and near the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters began recording deflationary tilt late Saturday morning. In response, the summit lava lake level has dropped and this morning is out of view from the National Park Service Jaggar Museum overlook. Generally low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and is entering the ocean at Kamokuna. Development of a new lava delta has resumed since its collapse into the ocean on May 3. Webcam views suggest continued surface activity within the 61g flow field above and near the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry. The flows pose no threat to nearby communities at this time.

As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.



HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Saturday, May 13, 2017, 8:51 AM HST (Saturday, May 13, 2017, 18:51 UTC)


KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary: No significant change. Kīlauea Volcano continues to erupt at its summit in Halemaʻumaʻu Crater and at Puʻu ʻŌʻō on the East Rift Zone. Friday morning the lava lake surface was 24 m (79 ft) below the adjacent crater floor and the lake has risen overnight. The Puʻu ʻŌʻō episode 61g lava flow continues to enter the ocean and form a lava delta at Kamokuna. Active surface flows persist above and near the pali southeast of Puʻu ʻŌʻō. These pose no threat to nearby communities. Low rates of ground surface deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters continue to record inflationary tilt. Webcam views show fluctuations in the level of the lava lake within the Overlook Vent. Yesterday morning, the lake surface was 24 m (79 ft) below the adjacent floor of Halemaʻumaʻu. The lake level has risen overnight in concert with summit inflation and is in view from the National Park Service Jaggar Museum overlook this morning. Low levels of seismicity continue, with amplitudes of volcanic tremor fluctuating with the strength of lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images show glow at long-term sources within Puʻu ʻŌʻō crater and from a small lava pond on the west side of the crater. The sulfur dioxide emission rate from East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations: The episode 61g flow remains active and entering the ocean at Kamokuna. Development of a new lava delta has resumed since its collapse into the ocean on May 3. Webcam views suggest active breakouts of lava within the 61g flow field above and near the pali southeast of Puʻu ʻŌʻō. No obvious surface lava flow activity on the coastal plain is noted between the pali and the ocean entry in web cam images. The flows pose no threat to nearby communities at this time.

As a strong caution to visitors viewing the ocean entry (where lava meets the sea), there are additional significant hazards besides walking on uneven surfaces and around unstable, extremely steep sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris created by sudden explosive interaction between lava and water. Also, the new land created is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses, once started, have also incorporated parts of the older sea cliff. This occurred most recently on December 31. Additionally, the interaction of lava with the ocean creates a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Please see this fact sheet for additional information about viewing lava safely: https://pubs.usgs.gov/fs/2000/fs152-00/


MORE INFORMATION

Activity Summary also available by phone: (808) 967-8862

Lava viewing information:
Hawai'i Volcanoes National Park: https://www.nps.gov/havo/planyourvisit/lava2.htm
County of Hawaii: http://www.hawaiicounty.gov/lava-viewing/
Kalapana lava-viewing area: 808-430-1966

Subscribe to these messages: https://volcanoes.usgs.gov/vns2/

Webcam images: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html

Photos/Video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Lava Flow Maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf

Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō ) eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/background.pdf

Summary of volcanic hazards from Kīlauea eruptions:
https://volcanoes.usgs.gov/volcanoes/kilauea/extra/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
https://volcanoes.usgs.gov/activity/alertsystem/index.php
https://pubs.usgs.gov/fs/2006/3139/

HVO Contact: askHVO@usgs.gov

CONTACT INFORMATION:

askHVO@usgs.gov

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.