Two earthquakes strike off Oregon coast, one reaching 5.4 magnitude
Oct 29, 2025, 12:18 PM | Updated: 12:54 pm
Two earthquakes hit off the Oregon coast. (Image courtesy of USGS)
(Image courtesy of USGS)
Did you feel a slight tremor this morning?
A pair of earthquakes hit off the Oregon coast early Wednesday morning, with one surpassing a 5.0 magnitude.
The first earthquake, a 4.8 magnitude, hit at 6:42 a.m. while the second, a 5.4 magnitude, struck at 7 a.m.
The United States Geological Survey (USGS) is asking people to report if they felt the quakes, with the 5.4 magnitude already getting activity on the Community Internet Intensity Map.
According to USGS, there is a 44% chance of a magnitude 3.0 aftershock in the same area.
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Pacific Northwest earthquake could set off ‘the bigger one’
Meanwhile, a recent study found “the big one” in the Pacific Northwest could set off “the bigger one,” triggering California’s San Andreas fault and leading to a monumental disaster, The Guardian reported.
“If they both went off together, then you’ve got potentially San Francisco, Portland, Seattle, and Vancouver all in an emergency situation in a compressed timeframe,” Dr. Chris Goldfinger, the study’s lead author and a marine geologist and geophysicist, told The Guardian.
Goldfinger told Science that if the Cascadia fault zone went off, he would take that as a clear warning for the San Andreas area.
Keep up with real-time earthquake information on MyNorthwest.
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