2021-12-16T21:14:46.0000Z-60.1797-23.801615manualconfirmedIRIS6mww1Origin/20211218224738.764217.504681Magnitude/20211218224738.764268.504682IRISSOUTH SANDWICH ISLANDS REGIONregion nameNEIC PDEcatalogpt21350001,us6000gcxa,usauto6000gcxacontributorID