The string of moderate earthquakes occurred within hours along a seismically active stretch near the California–Oregon border, raising concern in coastal communities already on alert following a stron...

A preliminary 2.3 magnitude quake occurred close to Larkfield-Wikiup on Wednesday evening, according to the U.S. Geological Survey.

At 6:17 a.m. (5:17 a.m. local time), a tremor shook the region at a depth of 9 miles, with its epicenter roughly 33 miles west of Petrolia.