4.4 Quake Deep Under Maunakea Felt As Far As Oʻahu
7:49 PM · Dec 14, 2020At 9:27am HST today (Monday, December 14, 2020), a magnitude 4.4 earthquake (reviewed) has occurred deep under Maunakea, 16 mi / 25 km below sea level: https://earthquake.usgs.gov/earthquakes/eventpage/hv72281637/executive If you felt the event, please report it here: https://earthquake.usgs.gov/earthquakes/eventpage/hv72281637/tellus This depth puts this event into the category of "flexure" or "mantle" earthquakes, which allow the tectonic crust under the volcanoes to adjust to their changing weight. There is no connection to volcanic activity. For more on different types of earthquakes, see the USGS Earthquakes in Hawaiʻi page here: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/about-earthquakes-hawaii Edit: Hawaiʻi County Civil Defense has issued an alert for NO TSUNAMI as the earthquake was not large enough to generate waves. They report the location as "in the vicinity of Waikoloa". Edit: Felt reports have come in primarily from the northern part of Hawaiʻi Island, though it was also more sparsely felt in the south, and on the other islands of Maui, Molokaʻi and Oʻahu! https://earthquake.usgs.gov/earthquakes/eventpage/hv72281637/dyfi/intensity Edit: USGS-HVO has issued a statement here: https://www.usgs.gov/volcano/volcano-updates#hvo