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Alert Level: NORMAL, Color Code: GREEN
2020-01-09 21:09:53 UTC





HAWAIIAN VOLCANO OBSERVATORY MONTHLY UPDATE
U.S. Geological Survey
Thursday, January 9, 2020, 11:09 AM HST (Thursday, January 9, 2020, 21:09 UTC)


MAUNA KEA VOLCANO (VNUM #332030)
19°49'12" N 155°28'12" W, Summit Elevation 13796 ft (4205 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

No significant activity was detected at Mauna Kea Volcano over the past month. Earthquake counts decreased compared to last month as aftershocks from the November 11. 2019 M4.9 event on Mauna Kea's east flank diminished in number. A single, continuously recording Global Positioning System (GPS) receiver atop Mauna Kea (operated by NASA's Jet Propulsion Laboratory) recorded no significant changes in deformation during the first half of December. No data have been received since December 16.

Background: Mauna Kea was last active about 4,600 years ago. Monitoring is conducted using three seismometers and one GPS receiver on the volcano plus instruments on adjacent Kohala volcano and denser seismic and geodetic networks on the north flank of Mauna Loa to the south.


This notice contains additional volcanoes not displayed: Kilauea (NORMAL/GREEN), Hualalai (NORMAL/GREEN), Haleakala (NORMAL/GREEN), Loihi Seamount (UNASSIGNED/UNASSIGNED).

MORE INFORMATION:

Activity summary for Mauna Loa is also available by phone: (808) 967-8866

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

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

Photos/video: https://volcanoes.usgs.gov/volcanoes/mauna_loa/multimedia_chronology.html

FAQs of Mauna Loa: https://volcanoes.usgs.gov/observatories/hvo/faq_maunaloa.html

Summary of volcanic hazards from eruptions: https://volcanoes.usgs.gov/observatories/hvo/hawaii_hazards.html

Recent earthquakes in Hawaiʻi (map and list): https://volcanoes.usgs.gov/volcanoes/mauna_loa/monitoring_summary.html

Explanation of Volcano Alert Levels and Aviation Color Codes: https://volcanoes.usgs.gov/vhp/about_alerts.html


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 Hawaiʻi.



HAWAIIAN VOLCANO OBSERVATORY MONTHLY UPDATE
U.S. Geological Survey
Thursday, December 5, 2019, 11:11 AM HST (Thursday, December 5, 2019, 21:11 UTC)


MAUNA KEA VOLCANO (VNUM #332030)
19°49'12" N 155°28'12" W, Summit Elevation 13796 ft (4205 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

No volcanic activity was detected at Mauna Kea Volcano over the past month. Earthquake activity was elevated over the past month, with about 40 earthquakes occurring within the vicinity of the volcano. A M4.9 event occurred on Mauna Kea's east flank at a depth of 32km (20 miles) on Nov 11, 2019 at 16:35UTC (06:35HST). There were over 20 aftershocks associated with this event. A single, continuously recording Global Positioning System (GPS) receiver atop Mauna Kea (operated by NASA's Jet Propulsion Laboratory) recorded no significant changes in deformation during this time.

Background: Mauna Kea was last active about 4,600 years ago. Monitoring is conducted using three seismometers and one GPS receiver on the volcano plus instruments on adjacent Kohala volcano and denser seismic and geodetic networks on the north flank of Mauna Loa to the south.


This notice contains additional volcanoes not displayed: Kilauea (NORMAL/GREEN), Hualalai (NORMAL/GREEN), Loihi Seamount (UNASSIGNED/UNASSIGNED), Haleakala (NORMAL/GREEN).

MORE INFORMATION:

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

Other Hawaiian volcanoes summary also available by phone: (808) 967-8877

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

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

Kilauea Photos/video: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_chronology.html

Kilauea Lava flow maps: https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

Haleakala Summary: https://volcanoes.usgs.gov/volcanoes/haleakala/

Hualalai Summary: https://volcanoes.usgs.gov/volcanoes/hualalai/

Loihi Summary: https://volcanoes.usgs.gov/volcanoes/loihi/

Mauna Kea Summary: https://volcanoes.usgs.gov/volcanoes/mauna_kea/

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

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

Recent earthquakes in Hawaiʻi (map and list): https://volcanoes.usgs.gov/hvo/earthquakes/

Explanation of Volcano Alert Levels and Aviation Color Codes: https://volcanoes.usgs.gov/vhp/about_alerts.html

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 Hawaiʻi.