A 4.8-magnitude earthquake and a swarm of aftershocks struck around El Centro in Imperial County on Monday, according to the U.S. Geological Survey.
The biggest in the series was about two miles northwest of downtown El Centro and struck at 36 minutes after midnight. It was about 10 miles deep.
The California Governor’s Office of Emergency Services issued a statement saying it is closely monitoring the impact of the earthquake and aftershocks and continues to work with partners to assess any damage.
But there were no immediate reports of serious injuries or damage.
More than two dozen aftershocks rattled the area on Monday, the last a 2.5-magnitude temblor at 9:36 a.m.
The quakes were likely caused by the San Jacinto fault system, one of the most active in Southern California.
City News Service contributed to this article.