A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey. The earthquakes all struck near Hayward, Calif., just south of Oakland. A minor,

The epicenter for all the quakes was about one mile east of Hayward, in San Francisco’s East Bay, according to the U.S. Geological Survey

Officials with the U.S. Geological Survey confirmed four earthquakes with magnitudes ranging from 2.7 to 3.7 hit in the East Bay over the course of Thursday.