IDENTIFIKASI BAHAYA SEISMIK DI DESA SEKITAR SESAR SUMATERA KECAMATAN KEPAHIANG BENGKULU BERDASARKAN ANALISIS MIKROTREMOR DENGAN METODE HVSR

NAULI, NOVALIA PUTRI and Khakim, Mokhamad Yusup Nur and Affandi, Azhar Kholiq (2025) IDENTIFIKASI BAHAYA SEISMIK DI DESA SEKITAR SESAR SUMATERA KECAMATAN KEPAHIANG BENGKULU BERDASARKAN ANALISIS MIKROTREMOR DENGAN METODE HVSR. Undergraduate thesis, Sriwijaya University.

	Image RAMA_45201_08021282126046_cover.jpg - Cover Image Available under License Creative Commons Public Domain Dedication. Download (359kB)
	Text RAMA_45201_08021282126046.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (8MB) | Request a copy
	Text RAMA_45201_08021282126046_TURNITIN.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (4MB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_01_front_ref.pdf - Accepted Version Available under License Creative Commons Public Domain Dedication. Download (2MB)
	Text RAMA_45201_08021282126046_0004037202_0015096101_02.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (1MB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_03.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (658kB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_04.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (2MB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_05.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (303kB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_06_ref.pdf - Bibliography Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (256kB) | Request a copy
	Text RAMA_45201_08021282126046_0004037202_0015096101_07_lamp.pdf - Bibliography Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (2MB) | Request a copy

Abstract

Kepahiang District, Bengkulu Province, is located along the active Musi Segment of the Sumatera Fault, making it highly vulnerable to seismic activity. The region includes residential areas and vacant lands with development potential, requiring a thorough understanding of subsurface conditions to mitigate earthquake risks. This study aims to analyze local site effects, including dominant frequency, dominant period, amplification factor, and seismic vulnerability index, as well as to identify the distribution of shear wave velocity (Vs₃₀) to estimate seismic hazard potential using the Horizontal to Vertical Spectral Ratio (HVSR) method. Microtremor measurements were conducted at 21 locations across several villages. Data were processed using Geopsy for HVSR analysis, Dinver for Vs₃₀ inversion, and QGIS for spatial mapping. Results show that dominant frequency ranges from 0.63 Hz to 10.735 Hz, with the highest value in Padang Lekat Village. The dominant period ranges from 0.093 to 1.587 seconds, with the highest found in Pasar Ujung Village. The highest amplification factor and seismic vulnerability index were observed in Imigrasi Permu Village. Vs₃₀ values range from 206.14 m/s to 513.89 m/s, indicating soft to medium soil types based on SNI 1726:2019 classification.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Efek tapak lokal, HVSR, Mikrotremor, Vs30, Indeks kerentanan seismik, Kepahiang
Subjects:	Q Science > QC Physics > QC1-999 Physics Q Science > QC Physics > QC801-809 Geophysics. Cosmic physics
Divisions:	08-Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User:	Novalia Putri Nauli
Date Deposited:	24 Jul 2025 07:34
Last Modified:	24 Jul 2025 07:34
URI:	http://repository.unsri.ac.id/id/eprint/180323

Actions (login required)

View Item