A magnitude 3.5 earthquake struck in San Bernardino County on Tuesday afternoon, causing shaking felt throughout Southern California. It happened at around 4:55 p.m. nearly four miles from Rialto, according to the United States Geological Survey. Heavy shaking was felt in the immediate area, in cities like Fontana and Rancho Cucamonga.

A light, 4.3-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey. The temblor happened at 9:32 a.m. Pacific time about 4 miles west of Muscoy, Calif., data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 4.2.

A 4.3-magnitude earthquake struck the Inland Empire on Thursday morning, with its epicenter located north of Fontana. The quake, which occurred around 9:30 a.m., was followed by a 3.1-magnitude aftershock in the same area. It is currently unknown if the earthquakes caused any damages or injuries.