(BIVN) – A Magnitude 4.2 earthquake shook Hawaiʻi island on Wednesday afternoon, but was not strong enough to cause a tsunami, officials say.
The earthquake occurred at 2:22 p.m. HST, and was located in the vicinity of Kilauea’s Kaoiki Fault, officials say. It was north of and more shallow (16.3 miles) than the deep Pahala earthquake swarm that has been ongoing for months.
From the Hawaiʻi County Civil Defense:
The Pacific Tsunami Warning Center reports the earthquake which occurred at approximately 2:22 pm in the vicinity of Kilauea’s Kaoiki Fault was not large enough to cause a tsunami for the Island of Hawaii. I say again, there is NO TSUNAMI THREAT to the Island of Hawaii.
Preliminary data indicates that the earthquake measuring a magnitude of 4.0 was centered in the vicinity of Kilauea Volcano.
As in all earthquakes, be aware of the possibility of after-shocks. If the earthquake was strongly felt in your area, precautionary checks should be made for any damages; especially to utility connections of Gas, Water, and Electricity.
You will be informed of any changes that may affect your safety.
The earthquake was felt by over two hundred people around Hawaiʻi island, who reported what they felt to the USGS within a half hour of the event. The quake appears to have been felt strongest in the Pahala area.
UPDATE – (7 p.m.) – From the USGS Hawaiian Volcano Observatory:
The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.2 earthquake located beneath Mauna Loa’s southeast flank on Wednesday, March 10, at 2:21 p.m., HST.
The earthquake epicenter was 17 km (11 miles) NNE of Pāhala in the vicinity of the Kaʻōiki Pali with a depth of approximately 26 km (16 miles) below sea level. A map showing its location is posted on the HVO website. More details are available at the National Earthquake Information Center website.
Moderate shaking, with maximum Intensity of V on the Modified Mercalli Intensity Scale, has been reported across the Island of Hawai‘i. At that intensity, damage to buildings or structures is not expected. The USGS “Did you feel it?” service received over 300 felt reports within the first hour of the earthquake, including reports from Maui, Oʻahu and Kauaʻi.
According to HVO Scientist-in-Charge Ken Hon, the earthquake had no apparent effect on Kīlauea or Mauna Loa volcanoes. “We do not currently observe any changes in activity at Kīlauea or Mauna Loa as a result of this earthquake. Please be aware that aftershocks are possible and may be felt. HVO continues to monitor Kīlauea and other Hawaiian volcanoes for any changes.”
Today’s earthquake does not represent a significant departure from the seismic activity observed over the past year, so the Volcano Alert Level for Mauna Loa will remain at ADVISORY. Other Mauna Loa monitoring data streams show no significant change in deformation rates or patterns that would indicate increased volcanic hazard at this time.
For information on recent earthquakes in Hawaii and eruption updates, visit the USGS Hawaiian Volcano Observatory website.