The U.S. Geological Survey is reporting an earthquake with a preliminary magnitude of 2.2 struck Wednesday evening in Santa Clara County.
According to the USGS, at 9:22 p.m. the Calaveras Fault tremor rattled an area in the east foothills south of the Calaveras Reservoir. The quake, which had a depth of 2.7 miles, was centered about 7 miles east of Milpitas and 10 miles from San Jose and Fremont, according to the USGS.
In the past week, three other magnitude 2.0 or larger seismic events have occurred along this segment of the Calaveras Fault. Most recently, a magnitude 2.1 quake rippled through the foothills Tuesday night from an area near the reservoir a few miles north of Wednesday's tremor.
The strongest event occurred on Friday, when a segment of the fault between Joseph D. Grant County Park and the reservoir produced a magnitude 2.5 temblor.