A 2.2-magnitude earthquake shook Sonoma County late Sunday night,
according to the U.S. Geological Survey.
The quake struck at about 10:10 p.m. and was centered two miles
northwest of The Geysers and 26 miles north-northwest of Santa Rosa, the USGS
said.
The USGS reported the temblor to have a depth of 1.7 miles.
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The area of The Geysers stands as the largest single geothermal
field in the world, according to the U.S. Department of Energy.
The region continually produces earthquakes between 0.5 and 3.0 on
the Richter scale, related to deep-well injection that the Department of
Energy says is necessary for the extended and sustained production of
geothermal resources at the site.
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Just last week, the California Geological Survey for the first time Residents may enter their zip codes and click on the maps to see fault lines and earthquake-prone areas.
--By Bay City News Service
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