2023-08-06T14:17:52.0000Z-55.7194-27.099829.729manualconfirmedIRIS5.7Mww1Origin/20230806143626.682033.284379Magnitude/20230806143626.682085.284380IRISSOUTH SANDWICH ISLANDS REGIONregion nameNEIC PDEcatalogus6000kya4contributorID