A preliminary magnitude 3.6 earthquake rattled San Bernardino County late Monday evening, marking the third temblor to hit the region within a 12 hour time period, according to the United States Geological Survey.

A magnitude 3.5 earthquake was reported Monday near San Bernardino at 9:44 a.m., followed by a 3.0 quake four minutes later, the U.S. Geological Survey reported.

Two earthquakes rocked California today, one after another, and though they were small, they definitely rattled nerves and pets near San Bernadino county