An earthquake with a magnitude of 4.3 rocked the San Francisco Bay Area early Monday, waking up many people, with more 22,000 saying they felt it, according to the according to the U.S. Geological Survey.

A 4.3 magnitude earthquake struck the San Francisco Bay area early Monday morning, jolting many nearby residents awake, according to the U.S. Geological Survey (USGS).

The quake, a magnitude 4.3, had its epicenter about a mile east of Berkeley.