2026-08-16T17:10:40.629118Z-21.724288940429688-16.69698524475097710manualconfirmedIAG4.53297472467062mb1Origin/20260817131122.741798.409813Magnitude/20260817131122.74186.409814earthquakeIAGSouthern Mid-Atlantic Ridgeregion nameusp2026qabfcontributorID