A moderate earthquake rattled parts of Silicon Valley Monday, but there were no immediate reports of damage.

The U.S. Geological Survey said the temblor had a preliminary magnitude of 4.3 and struck at about 10:40 a.m. PDT. It was centered 11 miles north of the city of Morgan Hill, or about 16 miles southeast of San Jose.

A Morgan Hill police dispatcher said there were no immediate reports of injuries or damage.

Bay Area Rapid Transit and San Francisco municipal transit suspended service for several minutes to do a routine after-earthquake check for damages.