A preliminary 3.1 magnitude quake was reported near Petrolia Saturday morning, according to the U.S. Geological Survey.
A 3.4-magnitude earthquake rocked a northern region of The Netherlands Friday, one of the strongest ever to hit the area that has been plagued by quakes due to gas extraction.
SONOMA COUNTY, CA - A preliminary 2.4 magnitude quake was recorded close to The Geysers around midday Thursday, the U.S.