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Alert Level: WATCH, Color Code: ORANGE
2017-09-21 19:29:33 UTC





HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Thursday, September 21, 2017, 9:29 AM HST (Thursday, September 21, 2017, 19:29 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded deflationary tilt over the past two days. The lava lake surface was at 43 m (141 ft) below the rim of the Overlook crater when measured this morning. This represents a drop of 16 m (52 ft) compared with yesterday when the lava lake surface was at 27 m (89 ft) below the crater rim. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images clearly show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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
Tuesday, September 19, 2017, 11:09 AM HST (Tuesday, September 19, 2017, 21:09 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded fairly flat tilt over the past two days, which is still consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface was at about 23 m (75 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images clearly show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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
Monday, September 18, 2017, 8:01 AM HST (Monday, September 18, 2017, 18:01 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded slowed inflationary tilt over the past 24 hours, which is still consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface remained at about 24 m (77 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images clearly show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. New breakouts started flowing over the top of the pali about 9 p.m. last night. None of these flows poses a threat to nearby communities at this time.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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, September 17, 2017, 7:51 AM HST (Sunday, September 17, 2017, 17:51 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded inflationary tilt over the past six days, consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface rose to an estimated 23 m (76 ft) below the rim of the Overlook crater this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna although the coast plume is difficult to see in the webcam images this morning. Webcam images clearly show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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, September 16, 2017, 3:10 PM HST (Sunday, September 17, 2017, 01:10 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded inflationary tilt over the past five days, consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface rose to about 25 m (82 ft) below the rim of the Overlook crater when measured at midday today. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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, September 15, 2017, 8:17 AM HST (Friday, September 15, 2017, 18:17 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded slightly inflationary tilt over the past four days, consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface rose to about 27 m (87 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time. Geologists at the ocean entry on Wednesday observed several prominent cracks in the lava delta that had widened in the past two weeks along with overall subsidence of the lava delta, highlighting the potential for bench collapse into the sea.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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, September 14, 2017, 8:22 AM HST (Thursday, September 14, 2017, 18:22 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded slightly inflationary tilt over the past three days, consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface rose to about 31 m (102 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time. Geologists at the ocean entry yesterday observed several prominent cracks in the lava delta that had widened in the past two weeks along with overall subsidence of the lava delta, highlighting the potential for bench collapse into the sea.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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
Wednesday, September 13, 2017, 8:24 AM HST (Wednesday, September 13, 2017, 18:24 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded slightly inflationary tilt over the past two days, consistent with the inflation phase of a summit DI event (see definitions below). The lava lake surface was about 41 m (133 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time. At the ocean entry, several prominent cracks are still present on the lava delta, highlighting the potential for bench collapse into the sea.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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
Tuesday, September 12, 2017, 8:55 AM HST (Tuesday, September 12, 2017, 18:55 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: Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations: Summit tiltmeters recorded slightly inflationary tilt over the past day, consistent with the inflation phase of a summit DI event (see definitions below). Accordingly, the lava lake surface height rose slightly to about 40 m (131 ft) below the rim of the Overlook crater when measured this morning. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground 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 is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field, on the pali, and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time. At the ocean entry, several prominent cracks are still present on the lava delta, highlighting the potential for bench collapse into the sea.

Ocean Entry Hazards: The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta 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 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.