2026-03-13T23:39:17.29Z37.363834381104-122.286003112790.14manualconfirmedUSGS1.42md1Origin/20260313234149.550218.109306Magnitude/20260313234149.55133.109307USGS5 km WSW of Portola Valley, CAregion namenccatalognc75327067contributorID