2026-05-31T15:04:25.48Z36.790832519531-121.415496826178.170000076294manualconfirmedUSGS1.14md1Origin/20260531150628.708563.19005Magnitude/20260531150628.708625.19006USGS5 km WSW of Ridgemark, CAregion namenccatalognc75368746contributorID