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USGS HVO Press Release
2017-09-15 Press Link

Magnitude-4.2 earthquake northeast of O‘ahu


The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.2 earthquake located off the northeast coast of O‘ahu on Friday, September 15, 2017, at 8:40 p.m. HST.

The earthquake was located about 33 km (20 mi) northeast of KāneOHE, O‘ahu, at a depth of 10 km (6.3 mi). A map showing the location of the earthquake is posted on HVO's website at https://volcanoes.usgs.gov/hvo/earthquakes/.

The USGS "Did you feel it?" website (https://earthquake.usgs.gov/dyfi/) received over 500 felt reports ranging from Kaua‘i to the Island of Hawai‘i. The maximum intensity of shaking reported was IV on the Mercalli Intensity Scale, indicating light shaking.

"The earthquake was likely due to bending of the oceanic plate from the weight of the island chain and poses no significant hazard," said HVO Seismic Network Manager Brian Shiro.

According to the Pacific Tsunami Warning Center (PTWC) no tsunami was generated by the earthquake.

For more information on recent earthquakes in Hawai‘i and eruption updates, visit the Hawaiian Volcano Observatory website at https://volcanoes.usgs.gov/hvo/.


Daily updates about ongoing eruptions, recent images and videos of summit and East Rift Zone volcanic activity, maps, and data about recent earthquakes in Hawaii are posted on the HVO website at https://volcanoes.usgs.gov/observatories/hvo.

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Links and contacts within this release are valid at the time of publication.