2025-03-19T03:30:48.97Z37.9106674194336-122.00583648681610.7700004577637manualconfirmedUSGS1.04md1Origin/20250319033253.377349.157351Magnitude/20250319033253.377401.157352USGS5 km E of Walnut Creek, CAregion namenccatalognc75151392contributorID