THIS STORY HAS BEEN UPDATED DUE TO ADJUSTED MAGNITUDE ON THE SECOND QUAKE, WHICH WAS CHANGED FROM 3.2 TO 3.0 BY THE U.S. GEOLOGICAL SURVEY.
COBB, Calif. – Two quakes measuring 3.0 and above were reported near The Geysers Geothermal steamfield Sunday evening.
The U.S. Geological Survey said the first quake, a 3.1 on the Richter Scale, occurred at 7:56 p.m., to be followed at 7:57 p.m. by a 3.0-magnitude quake.
The reports on the quakes were computer-generated, so their magnitudes could be adjusted by a seismologist on Monday.
The 3.1-magnitude quake was centered two miles north northeast of The Geysers, four miles west of Cobb and seven miles west northwest of Anderson Springs, at a depth of 2.4 miles, the U.S. Geological Survey reported.
The second, slightly smaller quake occurred at a depth of 2.1 miles and was centered two miles north northeast of The Geysers, four miles west southwest of Cobb and six miles west northwest of Anderson Springs, according to the agency.
Several local residents posted messages on Lake County News’ Facebook page, reporting that they felt the two temblors.
Only one shake report, from Middletown, was reported by 1 a.m. Monday on the 3.1-magnitude quake, and 17 shake reports had been made by the same time on the 3.0-magnitude quake.
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