The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.2 earthquake beneath Hawaii Island at 10:10 p.m. Saturday, June 27.
The Pacific Tsunami Warning Center determined that no damaging tsunami was generated by the earthquake.
According to Wes Thelen, HVO’s Seismic Network Manager, the earthquake was centered about 11.4 km (7.1 mi) south-southeast of the summit of Kilauea and at a depth of approximately 8.5 km (5.3 mi).
The USGS “Did you feel it?” website received more than 740 felt reports within an hour of the earthquake. It was felt across the island, as well as on parts of Maui, Lana‘i and Oahu. Reports indicate that residents experienced light shaking during the earthquake.
Five aftershocks were recorded within the first hour of the earthquake, including a magnitude-3.1 earthquake at 10:54 p.m. More aftershocks can be expected, including some that might be felt.
Eight earthquakes with magnitudes of 4 or greater, including three with magnitudes of 5 or greater, have occurred in this same area, the central part of Kilauea’s south flank, and at nearly the same depth (8–10 km or 5–6 miles), in the last 20 years. These quakes are thought to be caused by southward movement of the volcano’s south flank in response to magmatic pressure within Kilauea’s East Rift Zone.
HVO Scientist-in-Charge Tina Neal added that the earthquakes had no apparent effect on Kilauea’s ongoing eruptions. “HVO monitoring networks have not detected any significant changes in activity at the summits or rift zones of Kīlauea or other Hawaiian volcanoes.”
For more information on recent earthquakes in Hawaii and eruption updates, visit the Hawaiian Volcano Observatory website.