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Earthquakes shake West Coast, including magnitude 5.7 off Oregon, with no tsunami threat

At least two strong earthquakes struck off the Northern California and Oregon coasts early Wednesday, including a magnitude 5.7 quake. No Tsunami Warnings were issued.

Update: 5.7 magnitude earthquake jolts near Pistol River, OR on June 3

CURRY COUNTY, OR - A 5.7 magnitude quake occurred near Pistol River on Wednesday morning, according to the U.S. Geological Survey.

Map: 5.1-Magnitude Earthquake Strikes off the Coast of California

A moderately strong, 5.1-magnitude earthquake struck in the North Pacific Ocean on Wednesday, according to the United States Geological Survey. The temblor happened at 5:45 a.m. Pacific time about 40 miles west of Petrolia, Calif., data from the agency shows.

Minor quake hits California coastal area that’s become seismic hot spot

A minor earthquake was reported on Monday in the Pacific Ocean near the Northern California coastline, a shaker that produced no reports of damage in an area that’s become a seismic hotspot. 5.1 quake hits Northern California,

Why does California get so many earthquakes? Here's what causes them

California sits on an active plate boundary where the Pacific and North American plates grind past each other, producing frequent earthquakes.