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Alert Level: Watch Orange
2017-08-21 19:03:49 UTC





HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Monday, August 21, 2017, 9:03 AM HST (Monday, August 21, 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: Kīlauea Volcano continues to erupt at its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. The summit lava lake level has dropped over the weekend, in concert with deflationary tilt, and is lower than 40 m (130 ft) below the rim of the Overlook crater this morning. There have been no major changes in seismicity or deformation trends across the volcano.

Summit Observations: Summit tiltmeters recorded slight net deflation over the past day. The lava lake level dropped in concert with the tilt; this morning it is lower than when it was measured at 39 m (128 ft) below the rim of the Overlook crater vent Friday afternoon. Circulation and spattering of the lava lake surface continued. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels. The tiltmeter on the cone recorded a tilt excursion overnight that was related to local rainfall. 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 active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 20, 2017, 9:32 AM HST (Sunday, August 20, 2017, 19:32 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. The summit lava lake level is about 40 m (130 ft) below the rim of the Overlook crater this morning. There have been no major changes in seismicity or deformation trends across the volcano.

Summit Observations: Summit tiltmeters recorded slight net deflation over the past day. The lava lake level fluctuated in concert with the tilt; this morning it is slightly lower than when it was measured at 39 m (128 ft) below the rim of the Overlook crater vent Friday afternoon. Circulation and spattering of the lava lake surface continued. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and slight deflationary tilt was recorded by the tiltmeter on the cone. 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 active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 19, 2017, 9:02 AM HST (Saturday, August 19, 2017, 19:02 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. The summit lava lake level is about 39 m (128 ft) below the rim of the Overlook crater this morning. There have been no major changes in seismicity or deformation trends across the volcano. There was a magnitude 4.1 earthquake at 30 km (19 miles) depth east of Hawai`i Island yesterday evening.

Summit Observations: Summit tiltmeters recorded slow deflation until yesterday evening, and not much change after that. . The lava lake level fluctuated in concert with the tilt; this morning it is about the same level as when it was measured at 39 m (128 ft) below the rim of the Overlook crater vent yesterday afternoon. Circulation and spattering of the lava lake surface continued. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and slight inflationary tilt was recorded by the tiltmeter on the cone. 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 active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 18, 2017, 9:14 AM HST (Friday, August 18, 2017, 19:14 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. The summit lava lake level is about 35 m (115 ft) below the rim of the Overlook crater this morning.

Summit Observations: Summit tiltmeters recorded a switch to slow deflation yesterday afternoon, probably signaling the start of another DI event. The lava lake level rose and fell in concert with the tilt; this morning it is very slightly lower than when it was measured at 34 m (112 ft) below the rim of the Overlook crater vent yesterday afternoon. Circulation and spattering of the lava lake surface continued. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and sight inflationary tilt was recorded by the tiltmeter on the cone. 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 active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 17, 2017, 9:02 AM HST (Thursday, August 17, 2017, 19:02 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. The summit lava lake level has risen somewhat since it was measured at about 37 m (121 ft) below the rim of the Overlook crater yesterday afternoon.

Summit Observations: Summit tiltmeters recorded continued inflation associated with the current DI event. Circulation and spattering of the lava lake surface within the Overlook vent continued, while the lake level rose in concert with the tilt. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed very little change in 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 16, 2017, 9:09 AM HST (Wednesday, August 16, 2017, 19:09 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. The summit lava lake is at about the same level that is was yesterday morning, when it was measured at about 42 m (138 ft) below the rim of the Overlook crater.

Summit Observations: Summit tiltmeters recorded the switch to the inflation phase of the current DI event at about 8:30 last night. Circulation and spattering of the lava lake surface within the Overlook vent continued, while the lake level dropped until about 8:30 pm yesterday, then rose, in concert with the tilt, resulting in not much net change since it was measured yesterday morning at 42 m (138 ft) below the rim of the Overlook crater . Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed very little change in 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 15, 2017, 7:39 AM HST (Tuesday, August 15, 2017, 17:39 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. At the summit, the lava lake level has lowered slightly since it was measured yesterday morning, at which time it was about 28 m (92 ft) below the Overlook crater rim.

Summit Observations: Summit tiltmeters began recording a deflationary trend starting yesterday morning, which is continuing this morning. Circulation and spattering of the lava lake surface within the Overlook vent continued, and the lava lake level has lowered a few meters (yards) since it was measured yesterday morning. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed very little change in 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 14, 2017, 9:44 AM HST (Monday, August 14, 2017, 19:44 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. At the summit, the lava lake level has not changed significantly since it was last measured on Saturday afternoon, at which time it was about 30 m (98 ft) below the Overlook crater rim.

Summit Observations: Summit tiltmeters recorded a slight inflationary trend during the past day. Circulation and spattering of the lava lake surface within the Overlook vent continued, but with only small fluctuations in lake surface level. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed very little change in 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 13, 2017, 9:35 AM HST (Sunday, August 13, 2017, 19:35 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. At the summit, the lava lake level was about 30 m (98 ft) below the Overlook crater rim when measured yesterday afternoon.

Summit Observations: Summit tiltmeters continued to record an inflationary trend during the past day. The level of the lava lake rose at least 9 m (30 ft) to about 30 m (98 ft) below the Overlook crater rim between Friday evening and yesterday afternoon based on measurements of the lake surface. The lake level rose an additional few meters (yards) through this morning. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed very little change in 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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, August 12, 2017, 10:53 AM HST (Saturday, August 12, 2017, 20:53 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 its summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō continues to enter the ocean at Kamokuna. Surface flows are active above the pali and on the coastal plain. These flows pose no threat to nearby communities. There have been no major changes in seismicity or deformation across the volcano. At the summit, the lava lake level was about 39 m (128 ft) below the Overlook crater rim when measured last evening.

Summit Observations: Summit tiltmeters recorded an inflationary trend during the past day. During this inflation period, the level of the lava lake rose at least 5 m (16 ft) by early yesterday evening to about 39 m (128 ft) below the Overlook crater rim. Webcam views of the lava lake can be found at this webpage: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_webcams.html. Summit tremor continues to fluctuate in response to variations in lava lake spattering, and earthquakes occurred at normal, background rates. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations: Webcam images continue to show persistent glow from long-term sources at Puʻu ʻŌʻō. Seismic activity is at background levels, and ground tilt measurements in the past day showed a slight inflationary trend. 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. The lava pond within the Puʻu ʻŌʻō crater continues to be active.

Lava Flow Observations: The episode 61g flow is active and entering the ocean at Kamokuna. Several large cracks cut across the active lava delta parallel to the coastline, indicating seaward slumping of the delta's leading edge. These cracks highlight the unstable nature of the delta and the potential of its sudden collapse into the sea. Surface lava flow activity persists on the upper portion of the flow field above the pali and on the coastal plain.

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.