2026-07-29T10:30:59.826Z-55.8769-27.363660.675manualconfirmedUSGS5mb1Origin/20260729104925.873122.454094Magnitude/20260729104925.873261.4540952026-07-29T10:49:29.646755ZSouth Sandwich Islands Regionregion nameOrigin/20260729104925.873122.454094