2025-12-21T23:03:32.72Z36.783332824707-121.4085006713876.88000011444092manualconfirmedUSGS2.63md1Origin/20251221230638.605802.19487Magnitude/20251221230638.605852.19488USGS5 km SW of Ridgemark, CAregion namenccatalognc75284421contributorID