PALM SPRINGS - Officials say a 5.1 magnitude earthquake hit southern California earlier this morning with tremors being felt up to 100 miles away.

The US Geological Survey says the earthquake struck Palm Springs just after 1 a.m. Pacific time.

The shallow quake touched off a series of smaller aftershocks.

Residents as far as San Diego took to social media to report they felt it.

There were no immediate reports of damage.