Mauna Kea, Hawaii - earthquake swarm below the astronomical observatories volcano

Description: At 00:10 AM UTC October 20, a moderate earthquake with a magnitude of 4.5 and a depth of 18.8 km attracted our attention. To our surprise the epicenter was located below the slopes of Mauna Kea, an active shield volcano who's last eruption occurred at approx. 2,400 BC. Update 13:37 … [Read more...]