2026-07-27T16:07:01.423872Z-47.38874435424805-45.598400115966810manualconfirmedIAG4.819028926036027mb1Origin/20260728132716.67076.233001Magnitude/20260728132716.670825.233002earthquakeIAGSouth Atlantic Oceanregion nameusp2026oplacontributorID