Portland, OR – A moderate earthquake struck off the coast of Oregon Saturday afternoon, but federal officials confirmed there is no tsunami threat.
According to the U.S. Geological Survey (USGS) and the National Tsunami Warning Center, the earthquake was recorded at 3:13 p.m. PDT on September 27, 2025. The quake registered a preliminary magnitude of 5.1 and was located about 225 kilometers (140 miles) west of Bandon, Oregon, at a depth of roughly 10 kilometers (6 miles).
The National Tsunami Warning Center issued a statement shortly after the event, emphasizing that the offshore earthquake does not pose a tsunami danger to Oregon, Washington, or California. This follows another offshore earthquake reported late Thursday night, September 25, when a magnitude 5.9 quake was detected west of Oregon, also without triggering a tsunami.
Seismic data shows Saturday’s earthquake was felt lightly by some residents along the Oregon coast. As of Saturday evening, at least three people submitted “Did You Feel It?” reports to USGS, noting mild shaking. No damage or injuries have been reported at this time.
Earthquakes of this size are not uncommon in the Cascadia Subduction Zone region, one of North America’s most seismically active offshore areas. Scientists continue to monitor activity closely, though both USGS and NOAA stress there is no tsunami danger from today’s event.
Residents can track live updates and contribute felt reports through the USGS Earthquake Hazards Program website.
