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4.1 Big Island Quake From Bending of Oceanic Plate

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The US Geological Survey’s Hawaiian Volcano Observatory recorded the quake and noted its location at 66 miles northeast of Hawaiian Beaches and 73 miles east-northeast of Hilo, Hawaiʻi, at a depth of 18 miles, indicated by the blue dot to the far right. USGS map.

There was no tsunami generated from a 4.1 preliminary magnitude earthquake reported at 8:35 p.m. on Friday, Aug. 18, 2017, east of the Big Island of Hawaiʻi, according to the Pacific Tsunami Warning Center.

The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.1 earthquake east of the Island of Hawaiʻi on Friday, Aug. 18, 2017, at 8:35 p.m. HST.

The earthquake was located 66 miles northeast of Hawaiian Beaches and 73 miles east-northeast of Hilo, Hawaiʻi, at a depth of 18 miles.

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The USGS ‘Did you feel it?’ website received almost 100 felt reports within an hour of the earthquake. The USGS ShakeMap was III on the Modified Mercalli Intensity Scale, indicating light shaking.

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

The Pacific Tsunami Warning Center reported that the earthquake had no apparent effect on Kīlauea Volcano’s ongoing eruptions.

USGS Hawaiʻi earthquake, Aug. 18, 2017, Shake Map.

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The USGS reports that the quake was centered:

  • 63.3 miles ENE of Vacationland Hawaiʻi
  • 68.7 miles ENE of Hawaiian Paradise Park, Hawaiʻi
  • 71.3 miles ENE of Hawaiian Paradise Park, Hawaiʻi
  • 73 miles ENE of Hilo, Hawaiʻi
  • 265.8 miles ESE of Honolulu, Hawaiʻi

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