Overview

• At 4:55 p.m. on August 5, the USGS recorded a magnitude 3.5 earthquake about four miles west of Rialto at a depth of just over three miles.
• Shaking was reported as far west as San Clemente, north to Santa Clarita and south to Murrieta through the USGS “Did You Feel It?” reporting system.
• No injuries or structural damage have been reported, consistent with the low-impact pattern of recent regional tremors.
• Seismologists link the event to the Fontana trend, where five earthquakes of magnitude 3.0 or greater have struck the area in the past ten days.
• Experts continue to monitor fault activity in the Inland Empire and urge residents to follow Drop, Cover, and Hold On preparedness guidance.