San Francisco and the East Bay experienced a light tremor on Sunday night due to an earthquake with a magnitude of 2.9.
The U.S. Geological Survey estimates that the earthquake, which occurred in Piedmont at 10:31 p.m., had a depth of 6.2 miles.
The epicentre was located 3.7 miles to Oakland's northeast and 2.9 miles to Berkeley's southeast.
According to the USGS, the earthquake occurred along the Hayward Fault, which runs through the cities of Berkeley, Oakland, Hayward, and Fremont as it travels from San Pablo Bay in the north to Fremont in the south.
As of 10:55 p.m. on the USGS website, 2,051 people had reported feeling the quake but there had been no immediate reports of damage or injuries.
Many people on Twitter said they felt the earthquake.
"Yes, an earthquake occurred. In San Francisco's downtown, I felt very terrific! "one Twitter user remarked.
"first tremor in a while! a very slight shock felt in SOMA, San Francisco "another wrote.