" May 4, 2018, Mw 6.9 earthquake in Hawai'i occurred as a result of reverse faulting on the south flank of Kilauea volcano, in the east rift zone. Preliminary focal mechanism solutions indicate rupture occurred on shallow dipping thrust fault striking southwest, or on a steeply dipping reverse fault striking southeast. This earthquake is directly associated with volcanic activity at Kilauea volcano, and the evolution of its rift system and volcanic edifice.
Seismic activity has been elevated around Kilauea volcano over the past month, punctuated over ..."
https://earthquake.usgs.gov/earthquakes/eventpage/us1000dyad#executive