Minor 3.3 magnitude quake shakes San Francisco Bay area

A minor earthquake has shaken the San Francisco Bay area.

The United States Geological Survey says an earthquake with a preliminary magnitude of 3.3 struck just before 5 a.m. Monday. The epicenter of the quake was about 39 kilometers east-northeast of San Francisco City Hall.

The closest city to the 4:55 a.m. quake was Alamo, California, 3 kilometers away. The quake had a depth of about 6 kilometers.

There was no immediate word of damage or injuries.

According to the USGS, the East Bay area was hit with several small earthquakes Sunday.