HVO Mauna Loa Status

Recent Mauna Loa Status Reports, Updates, and Information Releases



HAWAIIAN VOLCANO OBSERVATORY WEEKLY UPDATE
U.S. Geological Survey
Thursday, February 23, 2017, 9:24 AM HST (Thursday, February 23, 2017, 19:24 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels. No significant change in summit fumarole temperature was noted over the past week.

Observations: A few dozen small-magnitude earthquakes occurred beneath the volcano during the past week, primarily in the upper Southwest Rift and at depths less than 5 km (3 miles). A handful of these earthquakes, however, occurred on the west flank of the volcano at slightly greater depths.

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed an increase in temperature during the first half of January; relatively steady fumarole temperatures were measured over the past week, however. No significant changes in volcanic gas emissions, sulfur dioxide or carbon dioxide were recorded.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, February 16, 2017, 9:29 AM HST (Thursday, February 16, 2017, 19:29 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels. No significant change in summit fumarole temperature was noted over the past week.

During the past week, only a few small-magnitude earthquakes occurred beneath the volcano, primarily in the upper Southwest Rift and Moku'?weoweo caldera at depths less than 5 km (3 miles). A small number of earthquakes also occurred on the west flank of the volcano at depths mostly above 5 km (3 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed an increase in temperature during the first half of January, however, relatively steady fumarole temperatures were measured over the past week. No significant changes in volcanic gas emissions, sulfur dioxide or carbon dioxide were measured.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, February 9, 2017, 9:28 AM HST (Thursday, February 9, 2017, 19:28 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels. No significant change in summit fumarole temperature was noted over the past week.

During the past week, small-magnitude (up to magnitude 3.0) earthquakes continued, primarily beneath the upper Southwest Rift Zone and the Northeast Rift zone at depths less than 5 km (3 miles). A small number of earthquakes also occurred on the west flank of the volcano at depths above 13 km (8 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed an increase in temperature during the first half of January, however, relatively steady fumarole temperatures were measured over the past week. No significant change in either sulfur dioxide or carbon dioxide concentrations was measured in the volcanic gas emissions.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, February 2, 2017, 10:43 AM HST (Thursday, February 2, 2017, 20:43 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels. No significant change in summit fumarole temperature was noted over the past week.

During the past week, small-magnitude (up to magnitude 3.0) earthquakes continued, primarily beneath the upper Southwest Rift Zone and the Northeast Rift zone at depths less than 5 km (3 miles). A small number of earthquakes also occurred on the west flank of the volcano at depths above 13 km (8 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed an increase in temperature during the first half of January, however, relatively steady fumarole temperatures were measured over the past week. No significant change in either sulfur dioxide or carbon dioxide concentrations was measured in the volcanic gas emissions.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes:
http://volcanoes.usgs.gov/activity/alertsystem/index.php
http://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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, January 26, 2017, 12:49 PM HST (Thursday, January 26, 2017, 22:49 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels. No significant change in summit fumarole temperature was noted over the past week.

During the past week, small-magnitude earthquakes continued, primarily beneath the upper Southwest Rift Zone at depths less than 5 km (3 miles). A small number of earthquakes also occurred on the west flank of the volcano at depths above 13 km (8 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed an increase in temperature during the first half of January, however, relatively steady fumarole temperatures were measured over the past week. No significant change in either sulfur dioxide or carbon dioxide concentrations was measured in the volcanic gas emissions.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

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

HVO Contact: 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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, January 19, 2017, 10:36 AM HST (Thursday, January 19, 2017, 20:36 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue to be above long-term background levels.

During the past week, small-magnitude earthquakes continued, primarily beneath the upper Southwest Rift Zone at depths less than 5 km (3 miles). A small number of earthquakes also occurred on the west flank of the volcano at depths above 13 km (8 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone.

Measurements from a continuously-monitored fumarole site within the summit caldera showed relatively steady fumarole temperatures and no significant changes in either sulfur dioxide or carbon dioxide concentrations in volcanic gas emissions.





Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

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

HVO Contact: 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 WEEKLY UPDATE
U.S. Geological Survey
Thursday, January 12, 2017, 10:50 AM HST (Thursday, January 12, 2017, 20:50 UTC)


MAUNA LOA VOLCANO (VNUM #332020)
19°28'30" N 155°36'29" W, Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary: Mauna Loa is not erupting. Rates of deformation and seismicity have not changed significantly in the past week and continue slightly above long-term background levels.

During the past week, small-magnitude earthquakes continued, primarily beneath the upper Southwest Rift Zone and Moku'aweoweo caldera at depths less than 5 km (3 miles).

Global Positioning System (GPS) measurements continue to show deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone, although rates appear to have slowed over the past month.

Measurements from a continuously-monitored fumarole site within the summit caldera showed relatively steady fumarole temperatures and no significant changes in either sulfur dioxide or carbon dioxide concentrations in volcanic gas emissions.






Background: Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano's great mass another 8 km (5 mi). This places Mauna Loa's summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawai?i.

Mauna Loa has erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984.

MORE INFORMATION

For more information on Mauna Loa and its hazards, see the USGS Fact sheet available at:
http://pubs.usgs.gov/fs/2012/3104/fs2012-3104.pdf.

For information on activity at K?lauea Volcano, please see:
http://hvo.wr.usgs.gov/activity/kilaueastatus.php

HVO Contact: askHVO@usgs.gov

MORE INFORMATION

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

Lava viewing information:
Hawai'i Volcanoes National Park: http://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: http://volcanoes.usgs.gov/vns/

Webcam images: http://hvo.wr.usgs.gov/cams/

Photos/Video: http://hvo.wr.usgs.gov/multimedia

Lava Flow Maps: http://hvo.wr.usgs.gov/maps/

Definitions of terms used in update: http://hvo.wr.usgs.gov/kilauea_update/definitions.pdf

Sulfur dioxide emission rate discussion: http://hvo.wr.usgs.gov/volcanowatch/view.php?id=207

Overview of K?lauea summit (Halema?uma?u) and East Rift Zone (Pu?u ???? ) eruptions:
http://hvo.wr.usgs.gov/kilauea_update/background.pdf

Summary of volcanic hazards from K?lauea eruptions:
http://hvo.wr.usgs.gov/kilauea_update/hazards.pdf

Recent Earthquakes in Hawai'i (map and list):
http://hvo.wr.usgs.gov/seismic/volcweb/earthquakes/

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

HVO Contact: 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.




Update Archive


Older updates can be found using the Volcano Archive Search page.

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For more information about the Volcano Alert Level and Aviation Color Code, please see the U.S. Geological Survey's Alert Notification System for Volcanic Activity Fact Sheet (pdf) or the USGS Volcanic Activity Alert-Notification System web page.