SEISMIC HAZARD FUNCTION ANALYSIS IN MAJOR CITIES OF CENTRAL JAVA REGION
This research was conducted by analyzing seismic hazards in three major cities in central Jawa:Yogyakarta, Semarang, and Surakarta, which are vulnerable to seismic activity due to subduction of the Indian-Australian Plate and active faults on land. Using the Probability Seismic Hazard Analysis (P...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/86814 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | This research was conducted by analyzing seismic hazards in three major cities in
central Jawa:Yogyakarta, Semarang, and Surakarta, which are vulnerable to
seismic activity due to subduction of the Indian-Australian Plate and active faults
on land. Using the Probability Seismic Hazard Analysis (PSHA) method, this study
integrates seismicity rate data and shallow earthquake catalogs with a maximum
depth of 60 km. Local and regional b-values were estimated to compare their
influence on the Seismic Hazard Function (SHF) curve. The use of local b-value
results in a steeper SHF curve than the regional b-value, with a lower Probability
of Exceedence (PE) value at the same Peak Ground Acceleration (PGA) value. In
addition, the study also evaluated the a-value, finding the influence of the a-value
on the SHF variability in each city and the seismic coupling between the three
regions. In addition, the study also compared the SHF curve estimation with the
GMPE of Fukushima & Tanaka (1992) and Kanno et al. (2006) in order to
understand the differences in the application of both GMPEs in the study area. |
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