Location: 16km SW of Leilani Estates, Island of Hawai’i
Date and Time: May 4, 2018 - 12:33PM HST
Synopsis: The Big Island of Hawai’i was shaken by a strong magnitude 6.9 earthquake early in the afternoon of Friday, May 4th. This event was associated with elevated volcanic activity around Kilauea volcano on the southeastern portion of the island. It is the largest earthquake to impact the state since the 1975 magnitude 7.4 Kalapana event, which occurred in the same general area.
The strong earthquake was preceded by several days of increased volcanic and seismic activity in the East Rift Zone of Kilauea. Several earthquakes of magnitude 4.5 or greater occurred in the 24 hours prior to the event with hundreds of smaller quakes. At least ten erupting ground fissures have opened in the Leilani Estates subdivision in the Puna District.
The most severe shaking occurred on the southeastern potion of the island near the earthquake’s epicenter around Volcano National Park. Strong shaking was experienced as far away as Hilo with lighter shaking on the northern and western sides of the island.