Earthquake of magnitude 2.7 registered near Petrolia, CA on June 6

HUMBOLDT COUNTY, CA - A preliminary 2.7 magnitude quake occurred close to Petrolia on Saturday morning, according to the U.S.

5.1 quake hits Northern California, followed by a 4.5

It was a busy morning for North Coast earthquakes, according to a post by the Redwood Coast Tsunami Work Group on Facebook.

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 ...
Modesto Bee

Update: Earthquake shakes region close to Petrolia, CA on May 15 - 2.2 magnitude registered

HUMBOLDT COUNTY, CA - A 2.2 magnitude quake occurred near Petrolia on Friday morning, according to the U.S. Geological Survey. The tremor, which struck the area at 10:36 a.m. (9:36 a.m. local time), ...
Merced Sun-Star

Earthquake measuring 2.3 struck area near Petrolia, CA on May 15

HUMBOLDT COUNTY, CA - A preliminary 2.3 magnitude quake occurred near Petrolia on Friday morning, according to the U.S. Geological Survey. The tremor, which shook the region at 10:36 a.m. (9:36 a.m.