IDENTIFIKASI ZONA BAHAYA GEMPA BUMI BERDASARKAN PERCEPATAN TANAH MAKSIMUM DI KOTA SEMARANG
DOI:
https://doi.org/10.20961/ijed.v1i2.428Abstract
Semarang City as the Capital of Central Java Province requires an earthquake-prone map. It is required since there are two active faults in Semarang, namely the Semarang fault (part of the Baribis - Kendeng fault) and the Ungaran fault. Moreover, Semarang City is composed of alluvial layers that can accelerate earthquake waves. This study aims to determine site class, peak ground acceleration (PGA) in bedrock, PGA at ground level and earthquake hazard index in Semarang City. In this study, the calculation of peak ground acceleration uses the method in SNI 1726: 2019, while the earthquake hazard index refers to the JICA classification. As input data in the form of the peak ground acceleration value in bedrock, the average shear wave velocity to a depth of 30 meters (Vs30) to determine the site class, as well as the value of the amplification factor. The calculation results in almost all areas of Semarang City have a high earthquake hazard index and only Genuk sub-district has a moderate hazard index. The main determinants of peak ground acceleration at the surface are the source of the earthquake and the rock type
Keywords:
earthquake, Semarang City, peak ground accelerationReferences
Ayubi, S. S. A., Karyanto, Haerudin, N., Rasimeng, S., & Wibowo, R. C. (2020). Zonasi Site Effect dan Analisis Bahaya Penguatan Gempa Menggunakan Metode DSHA (Deterministic Seismic Hazard Analysis) untuk Menentukan PGA (Peak Ground Accelaration) di Kabupaten Sumba Barat Daya. Indonesian Physical Review, 3(2), 38–53. https://doi.org/https://doi.org/10.29303/ ipr.v3i2.44
Bachri, S. (2014). Pengaruh Tektonik Regional Terhadap Pola Struktur dan Tektonik Pulau Jawa. Jurnal Geologi Dan Sumberdaya Mineral, 15(4), 215–221.
Bahri, Z., & Mungkin, M. (2019). Penggunaan SCR sebagai alarm peringatan dini pada saat terjadi gempa bumi. JET (Journal of Electrical Technology), 4(3), 101–105.
Brown, L. T., Diehl, J. G., & Nigbor, R. L. (2000). a Simplified Procedure To Measure Average Shear-Wave Velocity To a Depth of 30 Meters ( Vs30 ). 12Wcee, 1–8. http://www.iitk.ac.in/nicee/wcee/article/0677.pdf
Damayanti, C., Yamko, A. K., Souisa, C. J., Barends, W., & Naroly, I. L. P. T. (2020). Pemodelan Segmentasi Mentawai-Pagai: Studi Kasus Gempa Megathrust di Indonesia. Jurnal Geosains Dan Remote Sensing, 1(2), 105–110. https://doi.org/10.23960/jgrs.2020.v1i2.56
Ramkrishnan, R., Sreevalsa, K., & Sitharam, T. G. (2021). Development of New Ground Motion Prediction Equation for the North and Central Himalayas Using Recorded Strong Motion Data. Journal of Earthquake Engineering, 25(10), 1903–1926. https://doi.org/10.1080/13632469.2019.1605318
Robiana, R., Afif, H., Cipta, A., Omang, A., & Solikhin, A. (2021). Simplifikasi Pembagian Kelas Batuan Berdasarkan Nilai Periode Dominan : Studi Kasus Kota Semarang Simplified Of Site Class Classification Based On Natural Periods : Case Study In Sem ... Simplifikasi Pembagian Kelas Batuan Berdasarkan Nilai Periode Domina. Bulletin Vulkanologi Dan Bencana Geologi, 15(1), 11–20.
Sunardi, B., & Nugraha, J. (2016). Peak Ground Acceleration At Surface Peak Ground Acceleration At Surface and Spectral Acceleration for Makassar City Based on a Probabilistic Approach. Jurnal Meteorologi Dan Geofisika, 17(1), 33–46.
Supartoyo, Surono, & Putranto, E. (2014). Katalog Gempabumi Merusak di Indonesia Tahun 1612-2014. In Pvmbg (Vol. 2014, Issue 57).
Wardhana, D. D., Harjono, H., & Sudaryanto, S. (2014). Struktur Bawah Permukaan Kota Semarang Berdasarkan Data Gayaberat. Jurnal RISET Geologi Dan Pertambangan, 24(1), 53. https://doi.org/10.14203/risetgeotam2014.v24.81
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