Update: 3.7 magnitude earthquake shakes close to Petrolia, CA on March 20

HUMBOLDT COUNTY, CA - According to the U.S. Geological Survey, a 3.7 magnitude quake jolted near Petrolia on Friday morning.

Update: Earthquake shakes region close to Salton City, CA on March 19 - 2.1 magnitude recorded

IMPERIAL COUNTY, CA - A 2.1 magnitude quake struck near Salton City on Thursday morning, the U.S. Geological Survey reported.

Map: Small Earthquake Shakes Northern California

A minor earthquake with a preliminary magnitude of 3.4 struck Northern California on Tuesday, according to the United States Geological Survey. The temblor happened at 6:48 a.m. Pacific time about 5 ...
Earth.com

Scientists warn that a certain type of earthquake is much more destructive and being overlooked

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical earthquakes.
Edhat

Multiple Earthquakes Hit Northern California, Swarm Activity Detected Near Geysers

Earthquakes hit Aromas and The Geysers on Thursday, followed by swarm activity, highlighting ongoing seismic activity in the region.