2026-07-24T06:29:11.56Z39.458499908447-121.198997497565.9499998092651manualconfirmedUSGS2.12md1Origin/20260724063103.02737.194085Magnitude/20260724063103.027431.194086USGS6 km E of Challenge-Brownsville, CAregion namenccatalognc75404832contributorID