M4.2 Earthquake Rumbles in Northern California: USGS

Generic earthquake quake temblor
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A preliminary 4.2 magnitude earthquake struck Tuesday morning near Cobb, California, according to the United States Geological Survey.

The quake, which hit at 4:57 a.m., was centered about 1.5 miles northwest of Cobb and about 16 miles northeast of Healdsburg, the USGS said.

The temblor initially was measured at a 3.8 magnitude, but the USGS revised it to 4.2.

No other information was immediately available. Updates to come.

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