2026-08-01T00:10:00.07Z33.844833333333-117.9466666666715.46manualconfirmedUSGS1.44ml1Origin/20260801001420.109818.262409Magnitude/20260801001420.1099.262410USGS4 km SSW of Fullerton, CAregion namecicatalogci40664466contributorID