2026-09-02T23:46:55.17641Z-56.27307891845703-27.67581558227539106manualconfirmedIAG6.190083661586327mb1Origin/20260903132113.746964.68813Magnitude/20260903132113.747026.68814earthquakeIAGSouth Sandwich Islands Regionregion nameusp2026rfpvcontributorID