2026-08-23T17:23:28.016017Z-58.68798446655273-25.5410003662109410manualconfirmedIAG4.946001855787949mb1Origin/20260824131839.153878.477196Magnitude/20260824131839.15394.477197earthquakeIAGSouth Sandwich Islands Regionregion nameusp2026qmwdcontributorID