 Ramba uchinyora ndima ino - Sunda Arc musha wemamwe makomo anoputika ane ngozi zvikuru uye anoputika munyika. Kuputika kweGomo reTambora muna 1815 paSumbawa uye kuputika kweGomo reSamalas muna 1257 paLombok kwakanga kuri pakati peakakura zvikurusa mumakore ane zviuru zviviri apfuura, kuchironga 7 pachiyero cheVEI. Sunda Arc subduction zone yaivewo nzvimbo yeimwe yemakomo makuru anozivikanwa eCenozoic, iyo VEI 8 Toba supereruption paSumatra, iyo yakadzinga 2,800 km3 ye magma c. 74 000 BP. Caldera yakavapo yakava Lake Toba. Ruzha rukuru zvikurusa munhau yakanyorwa rwakaitika mukati mokuputika kwaKrakatoa muna 1883uye akanzwiwa kure. Mazana ezviuru zvavanhu akaurawa nokuputika uku uye nokumwe kuputika kwemamwe makomo anoputika, kubatanidza Papandayan, Galunggung, Merapi, Kelud, Sinabung uye Agung. 