@article{Bambang Sunardi_Supriyanto Rohadi_Anisa Dila Indriyani_Sulastri_Dwikorita Karnawati_2019, title={RE-EVALUATION OF SEISMIC HAZARD IN TASIKMALAYA CITY USING PROBABILISTIC APPROACH}, volume={17}, url={https://geomatejournal.com/geomate/article/view/2168}, abstractNote={<p>Tasikmalaya is one of the earthquake-prone cities in Indonesia as a result of collision of the<br>Indo-Australian and the Eurasian plate. Earthquake mitigation efforts are needed to reduce the impact of future<br>earthquakes. One of the mitigation efforts that can be proposed is a re-evaluation of the seismic hazard of the<br>city. The main objective of this study was to re-evaluate seismic hazard expressed in Peak Ground Acceleration<br>(PGA) and spectral acceleration at bedrock level based on a probabilistic approach, particularly in Tasikmalaya<br>City. We first processed the earthquake data then adopted the new 22 seismogenic structures as the earthquake<br>sources. Furthermore, we determined the characterization of each earthquake sources, selected, and adjusted<br>the ground motion attenuation, and logic tree processed to manage the uncertainty of earthquake recurrence,<br>magnitude distribution, and ground motion attenuation. Using Probabilistic Seismic Hazard Analysis (PSHA),<br>PGA and spectral acceleration at bedrock level corresponding to 2% exceedance of 50 years’ probability were<br>calculated. The seismic hazards were quantified in terms of PGA and spectral acceleration at two fundamental<br>periods of 0.2 and 1.0 s. The results showed that the subduction interface zones in southern Java and<br>background seismicity significantly contributed to the seismic hazard in Tasikmalaya City. If compared with<br>the 2010 Indonesian earthquake hazard maps, the results have relatively higher values in the three hazard maps<br>which might due to the different characterization of earthquake sources, earthquake catalogs, and the GMPE<br>to be used.<br><br></p>}, number={63}, journal={GEOMATE Journal}, author={Bambang Sunardi and Supriyanto Rohadi and Anisa Dila Indriyani and Sulastri and Dwikorita Karnawati}, year={2019}, month={May}, pages={187–194} }