2025-12-20T06:01:47.0000Z37.747501-121.9381649.15manualconfirmedIRIS2.04Md1Origin/20251220060440.800368.5171Magnitude/20251220060440.80042.5172IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc75283186contributorID