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, 3.3-magnitude earthquake happened at 11:52 a.m. Pacific time about 1 mile east of Hayward, Calif., data from the agency shows.

A sunken ship was found off the coast near Treasure Island in a known dumping ground for decommissioned vessels.

A series of small earthquakes rattled the San Francisco Bay Area late Thursday morning, adding another challenge to what is already a busy day battling nature in the region.

People are being advised to keep warm coats and umbrellas on hand as the Bay Area's frigid temperatures will merge with a pair of windy, rainy storms that are expected to arrive later this week.