Earthquake measuring 2.6 rattles area near Petrolia, CA on March 2

HUMBOLDT COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.6 magnitude quake occurred close to Petrolia ...

3.3 magnitude earthquake recorded close to Petrolia, CA on March 1

HUMBOLDT COUNTY, CA - the U.S. Geological Survey reported that a preliminary 3.3 magnitude quake occurred close to Petrolia on Sunday around midday.
SFGate

Regional: Small Earthquake Hits Northern California Near Mendocino-Humboldt County Line

An earthquake with a magnitude of 3.5 struck Northern California on Sunday in Humboldt County, just north of the Mendocino County line. The quake was recorded at 2:06 p.m. at a depth of 4.5 kilometers ...
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Tiny earthquakes reveal potentially death hidden beneath California

Tiny earthquakes have revealed potentially deadly hidden faults beneath California. By tracking swarms of very small tremors, seismologists are getting a new picture of the complex region where the ...