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 .

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

Two minor earthquakes struck the San Bernardino area on Monday, Feb. 10, the U.S. Geological Survey said. At 9:44 a.m., a magnitude 3.5 earthquake was recorded 3 miles northeast of San Bernardino, followed by a 3.0 earthquake at the same location at 9:48 a.m.