The Ground Shakes Again: Understanding Southern California’s Latest Earthquakes
At 9:32 a.m. PT on July 31, 2025, a magnitude 4.4 earthquake ruptured near Muscoy, California—just 6 km west of Fontana and 7 km north of Rialto in San Bernardino County. The shallow depth (3.3 miles) amplified shaking across Southern California, with reports from Los Angeles to San Diego and as far east as Ventura. Three minutes … Read more