No tsunami threat to Hawaiʻi after 4.6M earthquake off Kona Coast of Big Island
There is no tsunami threat to Hawaiʻi following a preliminary magnitude 4.6 earthquake reported at 8:17 p.m. on Thursday, July 9, 2026 in the deep ocean off the Kona Coast of Hawaiʻi Island.
The Pacific Tsunami Warning Center reports there is no tsunami expected, however some areas may have experienced shaking.
The Hawaiian Volcano Observatory says the quake was located 34 miles west-southwest of Captain Cookat a depth of 24 miles below sea level. The earthquake had no apparent impact on either Mauna Loa or Kīlauea volcanoes, according to the HVO.
“The depth and location of this earthquake indicate it is another lithospheric flexure earthquake related to bending of the ocean crust and upper brittle mantle (the lithosphere) by the weight of the islands,” the HVO reports. No impact to the ongoing eruption of Kīlauea volcano is expected.
M4.6 Earthquake – Hawaii region, Hawaii
| Magnitude | 4.6 |
| Date-Time | 8:17 p.m. on Thursday, July 9, 2026 |
| Location | 19.238N 156.358W |
| Depth | 7 km |
| Distances | 33.5 miles WSW of Captain Cook 36.2 miles SW of Kailua-Kona 89.1 miles WSW of Hilo 93.4 miles WSW of Hawaiian Paradise Park 172.1 miles SE of Honolulu |
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