(BIVN) – A Magnitude 4.9 earthquake (upgraded from 4.7) shook the Big Island of Hawaiʻi on Monday morning at 6:35 a.m. HST.

Early information shows the earthquake was centered on the east slope of Mauna Kea in the district of Hāmākua, 12 miles southwest of Laupahoehoe, at a depth of about 8 miles. After the event was reviewed by the USGS Hawaiian Volcano Observatory, the depth was revised to 19 miles.



The USGS HVO website shows several aftershocks (smaller red circles in the image below) are occurring in the area, as well.





UPDATE: The Pacific Tsunami Warning Center, which measured the quake at a Magnitude 4.8, reports that no tsunami was generated by the event. However, some areas may have experienced shaking.



UPDATE: According to a Hawaiʻi County Civil Defense radio message, the USGS HVO reports that the earthquake did not coincide with any changes in the volcanoes on the island.



Debris has also been reported on roadways in the Hāmākua district.

UPDATE: Hawaiʻi County Civil Defense says “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.”



The USGS Hawaiian Volcano Observatory issued this media release just before 8 a.m. HST: