Two earthquakes struck different parts of Northern California early Thursday morning, according to the U.S. Geological Survey.

Since Thursday, at least 131 earthquakes have been recorded — as small as magnitude 0.2 and as big as magnitude 4 — in the Geysers geothermal steam field in Sonoma and Lake counties.

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma and Lake counties.