Rare M4.4 earthquake under dormant Mauna Kea volcano, Hawai’i

Rare M4.4 earthquake under dormant Mauna Kea volcano, Hawai’i

The USGS Hawaiian Volcano Observatory (HVO) recorded a shallow M4.4 earthquake beneath Mauna Kea's northwest flank at 19:27 UTC (09:27 HST) on Monday, December 14, 2020. The epicenter was located about 20 km (12 miles) SE of Waimea, and 52 km (32 miles) WNW of…

Elevated seismicity at Mauna Loa volcano, Hawaii

Elevated seismicity at Mauna Loa volcano, Hawaii

Seismic activity increased on Mauna Loa's northwest flank on December 4, 2020, with M4.1 earthquake and clusters of small, shallow earthquakes occurring closely in time and location. The volcano is not erupting but the rates of deformation and seismicity have…

Shallow earthquake swarm under Kilauea volcano, Hawaii

Shallow earthquake swarm under Kilauea volcano, Hawaii

The Hawaiian Volcano Observatory (HVO) has recorded over 130 earthquakes beneath the NE top of the Ka‘ōiki fault system, northwest of Kīlauea's summit, on October 22 and 23, 2020. Other Kīlauea monitoring data streams remain stable and show no signs of…