“One Riverside resident said the earthquake “sounded like a bomb going off,” ABC reports.
The quake struck at 1:35 a.m. about three miles north of Fontana and five miles west of Rialto in San Bernardino County, according to the U.S. Geological Survey (USGS).
The USGS said the quake was extremely shallow, just over three miles deep.
Multiple aftershocks were reported within minutes after the initial earthquake, according to USGS. The largest aftershock was at 2:07 a.m, a 2.3-magnitude.
“I just felt the house kind of rocking back and forth like it was on shock absorbers. It only lasted about five seconds. It sounded like a bomb going off, and the house just started rocking,” Riverside resident Jeff Pracht said.
No immediate reports of injuries or significant damage have been provided.
The temblor, however, was felt across a large region, including even as far as Santa Monica, 65 miles west of the earthquake’s epicenter. Fontana, Rancho Cucamonga, Hacienda Heights, Ontario, San Bernardino, Downey were also rattled.
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