Peta Zonasi Tsunami Indonesia

Abstract

Indonesian archipelago is located on a very active seismic zone, in which tsunami earthquake can happen in many location of the island. This tsunami earthquake can destroy city and town on the coast line. This tragedy will destroy and killed thousand peoples in the area. Because of this, a tsunami risk map have been developed, which will inform designers and goverment officials concerning tsunami runups in Indonesia. The tsunami risk map is based on the tsunami earthquake occurrence in the area, and the empirical formula by Katyusuki Abe (1995) for runups. Tsunami risk map was devided into 5 zone, that was zone 0 with α = 0,00 – 0,29, zone 1 with α = 0,30 – 0,49, zone 2 with α = 0,50 – 0,69, zone 3 with α = 0,70 – 0,89 and for zone 4, α = 0,90 – 1,10. Keywords : Tsunami, Runups, Maximum runrups, Base runups, Maximum base runups, Map, Zone coefficient.