2026-04-06T13:09:29.354Z-56.9079-30.369310manualconfirmedUSGS4.9mb1Origin/20260406135917.305316.689636Magnitude/20260406135917.305402.6896372026-04-06T13:59:17.330125ZSouth Sandwich Islands Regionregion nameOrigin/20260406135917.305316.689636