2025-09-18T20:28:52.79Z37.3194999694824-118.74383544921915.0299997329712manualconfirmedUSGS2.1md1Origin/20250918203032.949948.588567Magnitude/20250918203032.95.588568USGS17 km WSW of Round Valley, CAregion namenccatalognc75239267contributorID