Northern Calif. Shakes in 3.3 Magnitude Earthquake

Northern California experienced mild shaking when a 3.3 magnitude earthquake struck the San Pablo, Calif., area at 9:35 a.m. this morning.

According to the U.S. Geological Survey, the earthquake, which occurred on the Hayward fault, was recorded at a depth of 4 miles. The epicenter was located 8 miles from Berkeley, Calif., and 16 miles from San Francisco City Hall. An aftershock in the same area was measured at 2.4 magnitude.

There have been no immediate reports of damage at press time.

The last major earthquake on the Hayward fault ocurred on Oct. 21, 1868. That quake had a magnitude of 7.0, left 30 dead, and caused $350,000 in property damage (dollars not adjusted for inflation), according to the California Geological Survey.