Civil Engineering Dimension
Vol. 12 No. 1 (2010): MARCH 2010

Development of Spectral Hazard Map for Indonesia with a Return Period of 2500 Years using Probabilistic Method

Asrurifak M. (Faculty of Civil and Environmental Engineering, ITB, Bandung)
Irsyam M. (Faculty of Civil and Environmental Engineering, ITB, Bandung)
Budiono B. (Faculty of Civil and Environmental Engineering, ITB, Bandung)
Triyoso W. (Faculty of Mining and Petroleum Engineering, ITB, Bandung)
Hendriyawan Hendriyawan (Faculty of Mining and Petroleum Engineering, ITB, Bandung)



Article Info

Publish Date
05 Mar 2010

Abstract

This study is performed to develop spectral hazard map for Indonesia with a Return Period of 2500 years earthquake. It will be proposed for revision of the Indonesian hazard map in SNI-03-1726-2002 as response to the meeting organized by the Department of Public Works on 27- October-2008 in Jakarta. The meeting has decided to revise the Indonesia hazard map by referring to IBC-2006 where spectral acceleration values at Peak Ground Acceleration/PGA, 0.2 and 1.0 second with a return period of 2500 year will be applied for general buildings. The spectral hazard map was analyzed using total probability method and three dimensional (3-D) source models with recent seismotectonic parameters. Four source models were used in this analysis, namely: shallow background, deep background, fault, and subduction source models. Generally, the results of analysis show the values of PGA with a return period of 2500 years relatively higher 1.2-3.0 times than in SNI-03-1726-2002.

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