Portland, Ore. – A 5.9 magnitude earthquake struck off the Oregon coast late Thursday night, rattling offshore waters but posing no tsunami threat, according to the National Tsunami Warning Center.
The quake was recorded at 11:46 p.m. PDT, centered about 231 kilometers west of Bandon, at a depth of roughly 9 miles. The U.S. Geological Survey said the quake was widely registered on seismic instruments, though early reports indicated only a handful of residents along the coast felt minor shaking. No damage or injuries have been reported.
Emergency managers in Coos and Curry counties confirmed they did not activate coastal evacuation sirens, as the offshore location and moderate depth made a tsunami unlikely. According to the USGS aftershock forecast, there is a 79% chance of smaller quakes of magnitude 3 or greater in the coming week, though stronger aftershocks remain unlikely.
Residents are urged to review earthquake safety measures, including securing heavy furniture, preparing an emergency kit, and knowing evacuation routes in case of future seismic activity.
Authorities say this will be the only tsunami information statement for the event unless conditions change.
