2026-10-15T02:06:00.68Z36.78466796875-121.407165527344.9400000572205manualconfirmedUSGS1.59md1Origin/20261015020746.020645.54742Magnitude/20261015020746.020708.54743USGS5 km SW of Ridgemark, CAregion namenccatalognc75449576contributorID