Astoria, OR – Two magnitude 3.4 earthquakes struck off the Pacific Northwest coast Wednesday afternoon, according to data from the U.S. Geological Survey (USGS). The quakes occurred within a minute of each other — one off the coast of Oregon and another southwest of Ilwaco, Washington.
According to the Pacific Northwest Seismic Network and Alaska Earthquake Center, the first quake was recorded at 2:00:33 p.m. UTC (7:00 a.m. local time) approximately off the coast of Oregon, at a depth of nearly 98 kilometers. The second, occurring at 2:01:14 p.m. UTC, struck 73 kilometers west-southwest of Ilwaco, Washington, at a much shallower 0.4 kilometers.
No tsunami advisories have been issued, according to the U.S. Tsunami Warning System, and there are no immediate reports of damage or injuries. The events were located several dozen miles offshore, where seismic activity is not uncommon along the Cascadia Subduction Zone, a region known for frequent undersea earthquakes.
Residents along the Oregon and Washington coasts are encouraged to report any shaking to the USGS “Did You Feel It?” program to assist in ongoing seismic monitoring.
The pair of moderate quakes serve as a reminder of the region’s active tectonic setting, though experts emphasize that magnitudes of this size rarely cause surface damage.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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