2025-12-20T09:59:33.0000Z37.7495-121.9496698.4manualconfirmedIRIS1.74Md1Origin/20251220100242.237861.6623Magnitude/20251220100242.237924.6624IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc75283271contributorID