 Ramba uchinyora ndima iyi - The Great Sumatra fault a strike-slip fault, uye Sunda megathrust a subduction zone, run run the entire length of the island along its west coast. Musi waDecember 26, 2004, mhenderekedzo yokumadokero uye zvitsuwa zveSumatra, kunyanya dunhu reAceh, zvakarohwa netsunami yakatevera kudengenyeka kwenyika kwakaitika muIndian Ocean. Uku ndiko kwakanga kuri kudengenyeka kwenyika kwakarebesa kwakanyorwa, kwakagara pakati pemasekonzi 500 ne600. Vanhu vokuIndonesia vanopfuura 170 000 vakaurayiwa, zvikurukuru muAceh. Kumwe kudengenyeka kwenyika kuchangobva kuitika muSumatra kunosanganisira kudengenyeka kwenyika kwakaitika kuNias Simeulue muna 2005uye kudengenyeka kwenyika kwakaitika kuMentawai muna 2010 pamwe chete netsunami. 