2025-10-18T09:52:48.53Z37.3248329162598-121.6884994506846.34000015258789manualconfirmedUSGS1.31md1Origin/20251018095431.741122.35388Magnitude/20251018095431.741188.35389USGS13 km ESE of Alum Rock, CAregion namenccatalognc75250991contributorID