STUDY OF SEISMIC HAZARD AND RISK ANALYSIS USING PROBABILISTIC APPROACH FOR ISLAND OF JAVA

• Main Author: DAMANIK (NIM : 22410303); Pembimbing : Wahyu Triyoso, Ph.D, RUBEN
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/19380
• Institution: Institut Teknologi Bandung

The island of Java, within the Indonesian archipelago, sits atop the Eurasian plate, the Australian plate was moved northward and subducted under the Eurasian plate. Convergence is nearly orthogonal to the trench axis along south of Java Island. By the chains of disaster caused by the earthquakes, so the study and evaluation about earthquake hazard and risk is needed. One of the methods to analyze the earthquake risk probability is to begin with conducting a seismic hazard study. <br /> <br /> <br /> The study of seismic hazard is conducted by using probabilistic seismic hazard assessment method using an event based approach. This means that the ground motions are computed for each event individually and the results are separately aggregated to form probabilistic estimates. The event based approach differs from the traditional approach to PSHA which integrates over all magnitude and distance combination. <br /> <br /> <br /> This study presents the site classification using shear wave velocity for 30 m depth (Wald and Allen,2007). Further, probabilistic seismic risk analysis has been carried out to map the seismic hazard in terms peak ground accelerations at rock and the ground level considering the site classes. Based on the potential earthquake sources, recent earthquake records, geological condition, and vulnerability curve then model of earthquake source zone of Java can be depicted.