An offshore tremblor struck off the Oregon coast this morning, with shaking reported to have been felt on land in Oregon and Washington state.
The quake occurred at 8:07 a.m. today (August 29).
The U.S. Geological Survey measured it as a 6.3-magnitude seismic event.
The epicentre, at a shallow depth of five kilometres (three miles), was located 285 kilometres (177 miles) west of Bandon, Oregon, and 415 kilometres (257 miles) southwest of Salem, Oregon.
According to the U.S. Tsunami Warning Centre (which listed it as a 6.4-magnitude quake, based on preliminary assessments), a tsunami is not expected.