2026-01-28T11:31:35.214233Z-55.92193603515625-27.46576309204101693manualconfirmedIAG4.731152895423661mb1Origin/20260128131758.501244.75133Magnitude/20260128131758.50131.75134earthquakeIAGSouth Sandwich Islands Regionregion nameusp2026byfjcontributorID