2026-06-21T12:23:15.5Z37.126499176025-121.522499084476.8600001335144manualconfirmedUSGS1.25md1Origin/20260621122501.505007.37843Magnitude/20260621122501.505069.37844USGS9 km ENE of San Martin, CAregion namenccatalognc75380656contributorID