2023-09-18T19:40:16.0000Z38.771-122.7366640.95manualconfirmedIRIS1.29Md1Origin/20230918194333.983165.597344Magnitude/20230918194333.983217.597345IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73938511contributorID