A 3.0 magnitude earthquake struck in the East Bay Tuesday morning, according to the United States Geological Survey.
The quake hit at 7:44 a.m. and was centered about 1.4 miles northwest of Alamo and about 3 miles southeast of Walnut Creek, the USGS said.
The USGS initially reported that the quake was a magnitude 3.4.
No other information was immediately available.
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