2025-08-16T05:45:56.33Z37.3608322143555-121.7143325805669.079999923706049manualconfirmedUSGS1.66md1Origin/20250816054801.366828.260544Magnitude/20250816054801.366886.260545USGS10 km ESE of Alum Rock, CAregion namenccatalognc75224447contributorID