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.

Twin earthquakes shocked California today, just four miles from San Bernardino, registering at about 3.5 on the Richter scale, as X quickly lit up with posts that said the quake felt like 'jolts that rattled nerves and frightened pets.

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.

The U.S. Geological Survey reported two earthquakes with preliminary magnitudes of 3.5 and 3.0 ​hit near the San Bernardino area Monday morning.

A magnitude 3.0 earthquake shook the San Bernardino area Monday morning, according to the U.S. Geological Survey.