Latest News About 1975 Hawaii Earthquake

Updated 2026-05-25 21:07

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1975 Earthquake and Tsunami - Hawaii DOD

80th Governor George R. Ariyoshi and President Gerald R. Ford declared Hawaii County a major disaster area due to an earthquake-tsunami which struck there at 4:48 a.m., Nov. 29, 1975. Within minutes, a tsunami with 40-foot waves followed the earthquake. Two people were killed and approximately $4.1 million in property damage occurred due to the […]

dod.hawaii.gov

Volcano Watch — The 25th Anniversary of M7.2 1975 Kalapana ...

Wednesday, November 29, 2000, will mark the 25th anniversary of the magnitude 7.2 Kalapana earthquake that struck the Puna and Ka'u districts of Hawai'i County. The 1975 earthquake is the second largest ever documented in Hawai'i, overshadowed only by the 1868 great Ka'u earthquake, which has been estimated to be of magnitude 7.9.

www.usgs.gov

Earthquakes and related catastrophic events, Island of ...

The largest earthquake in over a century--magnitude 7.2 on the Richter Scale--struck Hawaii the morning of November 29, 1975, at 0448. It was centered about 5 km beneath the Kalapana area on the southeastern coast of the island at 19° 20.1 ' N., long 155° 01.4 ' W.). The earthquake was preceded by numerous foreshocks, the largest of which was a 5.7-magnitude jolt at 0336 the same morning, and was accompanied, or closely followed, by a tsunami seismic sea wave), massive ground movements,...

pubs.usgs.gov