Amy Graff
More than 50 earthquakes — ranging from magnitude 3.4 to 5.8 — were recorded off the Oregon coast in the last 24 hours, the US Geological Survey said.
The swarm is centered about 200 to 270 miles west of the coastal town of Newport, far enough off the coast to not cause even light shaking on land. A dozen tremors reached a magnitude 5.0 to 5.8. Two magnitude 5.8 tremors struck on Tuesday, one at 4:36 p.m. and the other at 5:21 p.m.
The earthquake activity is occurring on the Blanco Transform Fault. The fault is more active than California's famous San Andreas fault, Oregon State University said. Before the quake swarm, the fault has had 49 eart
"Things are getting exciting out there on the Blanco Transform Fault today," Harold Tobin, director of the Pacific Northwest Seismic Network and a professor in the Department of Earth and Space Sciences at the University of Washington, wrote on Twitter. "Not felt on land — they're too far away. This is perhaps the most seismically active fault anywhere near North America, and this is not cause for alarm.
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