Mentawai Achipelago is part of Sumatra Island which has two geological conditions to plate tectonic order. First, the Indo-Australian plate plunges into the Eurasian plate. Second, there is a Sumatran fault zone which is usually called Sesar Semangko or Sumatran Fault Zone (SFZ). Located between the subduction zone and the Mentawai Achipelago fault that cause earthquake activity. This study aim…