2026-05-25T18:55:23.85Z36.779834747315-121.361663818363.579999923706manualconfirmedUSGS1.76md1Origin/20260525185735.383592.72893Magnitude/20260525185735.383651.72894USGS4 km S of Ridgemark, CAregion namenccatalognc75368832contributorID