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Updated: Strong quake off California prompts tsunami warnings on West Coast

A tsunami warning has been issued following a magnitude 7.3 earthquake off the coast of California Thursday, Dec. 5, 2024.
A tsunami warning has been issued following a magnitude 7.3 earthquake off the coast of California Thursday, Dec. 5, 2024. NOAA

A powerful earthquake offshore from Eureka, California on Thursday morning prompted tsunami warnings on the west coast. The alerts were canceled at 11:54 a.m.

The 7.0-magnitude quake struck about 45 miles southwest of Eureka at 10:44 a.m. Initially measured at 7.3, the magnitude was later downgraded to 7.0 by the U.S. Geological Service.

A tsunami warning was in effect from Santa Cruz (Monterey Bay), California to just south of Florence, Oregon.

A shake map shows the intensity of Thursday’s earthquake.
A shake map shows the intensity of Thursday’s earthquake. Courtesy USGA

According to community reporting, the temblor was felt from Santa Cruz to Eugene, Oregon and as far east as Reno, Nevada.

The first alert was sent by NOAA at 10:49 a.m. Advisories were later sent to Hawaii, Guam and American Samoa stating that, based on available information, those islands were not expected to be impacted.

NOAA canceled the alert just before noon for coastal areas of California and Oregon. It said no destructive tsunami observations had been made but it urged caution.

“Do not re-occupy hazard zones until local emergency officials indicate it is safe to do so,” NOAA said.

This is a developing story. Check back for updates.

This story was originally published December 5, 2024 at 11:19 AM.

Craig Sailor
The News Tribune
Craig Sailor has worked for The News Tribune since 1998 as a writer, editor and photographer. He previously worked at The Olympian and at other newspapers in Nevada and California. He has a degree in journalism from San Jose State University.
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