Alert Level: UNASSIGNED, Color Code: UNASSIGNED 2023-03-02 20:10:15 UTC
HAWAIIAN VOLCANO OBSERVATORY MONTHLY UPDATE
U.S. Geological Survey
Thursday, March 2, 2023, 10:10 AM HST (Thursday, March 2, 2023, 20:10 UTC)
18°55'12" N 155°16'12" W, Summit Elevation -3199 ft (-975 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
No significant activity was detected at Kamaʻehuakanaloa Volcano (formerly Lōʻihi Seamount) during the past month. HVO seismometers recorded 14 small-magnitude earthquakes (below M3.0) in the vicinity of the volcano. This earthquake count is on par with previous months, and is representative of background activity levels at the volcano.
Background: Intermittent earthquake activity has been recorded in the vicinity of Kamaʻehuakanaloa (formerly Lōʻihi) since as early as 1952. The most energetic earthquake sequence occurred in July-August 1996, which included more than 4,000 earthquakes, with nearly 300 events larger than M3.0 and 95 events in the M4.0 to 4.9 range. More recently, a swarm of 100 earthquakes occurred on May 11, 2020, with 18 events in the M3.0 to 3.9 range. There are no working monitoring instruments on Kamaʻehuakanaloa, whose peak is about 1,000 meters (3,280 feet) below sea level. All real-time information about the volcano is derived from land-based seismometers on the Island of Hawai‘i.This notice contains volcanoes not displayed here:
Kamaʻehuakanaloa website: https://www.usgs.gov/volcanoes/kama'ehuakanaloa
Hawaiian Volcanoes at Elevated Alert Levels:
Kīlauea Volcano (ORANGE/WATCH) updates: https://www.usgs.gov/volcanoes/kilauea/volcano-updates
Mauna Loa Volcano (YELLOW/ADVISORY) updates: https://www.usgs.gov/volcanoes/mauna-loa/volcano-updates
Hualalai (NORMAL/GREEN), Haleakala (NORMAL/GREEN), Mauna Kea (NORMAL/GREEN).
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 and American Samoa.
Subscribe to these messages: https://volcanoes.usgs.gov/vns2/
Summary of volcanic hazards from eruptions: https://www.usgs.gov/observatories/hvo/hazards
Recent earthquakes in Hawaiʻi (map and list): https://www.usgs.gov/observatories/hvo
Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes