ANALISIS PEAK GROUND ACCELERATION (PGA) DI WILAYAH KERINCI DAN SUNGAI PENUH MENGGUNAKAN METODE PROBABILISTIC SEISMIC HAZARD ANALYSIS (PSHA) DAN DETERMINISTIC SEISMIC HAZARD ANALYSIS (DSHA)

REVSI, NUR and Sutopo, Sutopo and Affandi, Azhar Kholiq (2021) ANALISIS PEAK GROUND ACCELERATION (PGA) DI WILAYAH KERINCI DAN SUNGAI PENUH MENGGUNAKAN METODE PROBABILISTIC SEISMIC HAZARD ANALYSIS (PSHA) DAN DETERMINISTIC SEISMIC HAZARD ANALYSIS (DSHA). Undergraduate thesis, Sriwijaya University.

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Abstract

Penelitian ini bertujuan untuk mengetahui nilai Peak Ground Acceleration (PGA) di batuan dasar yang lebih spesifik untuk wilayah Kerinci dan Sungai Penuh. Analisis PGA menggunakan metode Probabilistic Seismic Hazard Analysis (PSHA) dan metode Deterministic Seismic Hazard Analysis (DSHA). Penelitian ini menggunakan data historis gempabumi dari International Seismological Center (ISC) sejak tahun 1900 – 2020. Program yang digunakan USGS PSHA 2007 dan dihasilkan peta nilai PGA untuk periode ulang 500 tahun probabilitas terlampaui 10% dalam 50 tahun usia bangunan. Hasil analisis dengan menggunakan metode PSHA memiliki nilai PGA berkisar antara 0.35-0.80 g dengan nilai PGA terbesar diwilayah Kerinci berada di Kecamatan Siulak (0,50-0,80) dan yang terkecil di kecamatan Gunung Tujuh (0.40-0.55), untuk wilayah Sungai Penuh nilai PGA terbesar di Kecamatan Tanah Kampung (0.75-0.80) dan yang terkecil dikecamatan Pondok Tinggi (0.40-0.75). Perhitungan Deterministik menggunakan program modifikasi shakemap oleh BMKG 2015, sumber gempabumi berupa suatu trace bidang patahan. Hasil perhitungan DSHA wilayah Kerinci dan Sungai Penuh dengan membuat tiga skenario gempa dengan memasukkan nilai magnitudo maksimum pada setiap sumber gempa di tiga segmen sesar wilayah penelitian memiliki nilai PGA berkisar antara 0,01-0,55 g.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Gempabumi, PGA, Probabilitas, PSHA, DSHA
Subjects: Q Science > QC Physics > QC801-809 Geophysics. Cosmic physics
Divisions: 08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User: Nur Revsi
Date Deposited: 28 Dec 2021 08:00
Last Modified: 28 Dec 2021 08:00
URI: http://repository.unsri.ac.id/id/eprint/59643

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