SEISMIC HAZARD FUNCTION (SHF) INVESTIGATION FROM THE 10 OCTOBER 2018 SITUBONDO EARTHQUAKE FAULT FOR SITUBONDO AND ITS SURROUNDING CITIES
The 10 Oct 2018 Situbondo earthquake occurred around the populous cities. The characterization of the fault that generated the 2018 Situbondo earthquake has been carried out in previous studies. In this study, a further study was carried out by adding three observation stations to determine the s...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/69631 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The 10 Oct 2018 Situbondo earthquake occurred around the populous cities. The
characterization of the fault that generated the 2018 Situbondo earthquake has been
carried out in previous studies. In this study, a further study was carried out by
adding three observation stations to determine the seismic hazard caused by this
fault source through a seismic hazard function (SHF) study using the Probabilistic
Seismic Hazard Analysis (PSHA) method. Estimation of slip rate empirically
obtained 0.6 mm/year. In addition, by applying the checkerboard test, the rupture
zone area is 15 km x 25 km. PGA was estimated using Ground Motion Prediction
Equations (GMPEs) calculated on the bedrock and obtained seismic hazard curves
for the observed cities. This curve is described with the plot of PE as a function of
PGA. The result shows that source is potencially for the cities of Situbondo,
Sumenep, Probolinggo, Jember, Surabaya and Sidoarjo. These are indicated by
relatively high curve values. In addition, based on the results of PDF calculations,
it is found that the probability of the source generating an earthquake with > Mw
6.2 is less than 0.5%. |
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