The East Bay was hit by a magnitude 3.8 earthquake on Wednesday afternoon, according to the U.S. Geological Survey.
The shake was immediately followed by aftershocks with magnitude 2.6 and 3.0, SFGATE reported.
At 11:43 in the morning, the main quake was recorded 6.7 miles in depth. The ESGS said the epicenter was located a mile north of San Ramon, 2.7 miles southeast of Danville, and 12.4 miles south of Concord.
According to the initial report of the Survey, the shake was magnitude 4.2. Later, it dropped down to 4.0 and 3.8.
The East Bay has experienced the shake, which went as far south as Santa Cruz and as far north as Vallejo.
The USGS furthered that the earthquake transpired on the Calaveras Fault that triggered the magnitude 6.2 Morgan Hill earthquake in 1984. The same fault was behind the 1911’s magnitude 6.2 earthquake.
The three earthquakes left no damage as of 12:15 in the afternoon, the Contra Costa County Fire Protection District said on Twitter.
“No damage has been reported to the Contra Costa Regional Fire Communications Center as a result of the three San Ramon-area earthquakes, initially reported by USGS as being between 2.6 and 3.8 magnitudes, just before noon today,” it said.