2026-07-31T08:31:28.631Z4.089993.181110manualconfirmedUSGS4.9mww1Origin/20260731084900.750432.10343Magnitude/20260731084900.750537.103442026-07-31T08:43:14.985818Z2026-07-31T08:49:00.762686ZOff West Coast of Northern Sumatraregion nameOrigin/20260731084900.750432.10343