2025-12-20T14:15:12.0000Z37.743167-121.93956.56manualconfirmedIRIS0.77Md1Origin/20251220234111.206287.11323Magnitude/20251220234111.206338.11324IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc75283416contributorID