2025-08-01T20:35:16.34Z39.7658333333333-122.9088333333332.51manualconfirmedUSGS1.66md1Origin/20250801214638.038916.122583Magnitude/20250801214638.038966.122584USGS20 km NW of Alder Springs, CAregion namenccatalognc75218052contributorID