2021-07-31T15:39:21.0000Z27.5416-111.518310manualconfirmedIRIS5.5mww1Origin/20210731170923.458166.332788Magnitude/20210731170923.458215.332789IRISGULF OF CALIFORNIAregion nameNEIC PDEcatalogpt21212000,us6000f109,usauto6000f109contributorID