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All Journal Jurnal Sains dan Teknologi Jurnal Stasiun Geofisika Sleman (JSGS)
Rifa Salma Salsabila
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Studi Awal Mikrozonasi dan Klasifikasi Site Wilayah Jakarta Selatan Rifa Salma Salsabila; Bambang Sunardi; Setyoajie Prayoedhie
Jurnal Stasiun Geofisika Sleman Vol. 1 No. 1 (2023): Jurnal Stasiun Geofisika Sleman (JSGS)
Publisher : Stasiun Geofisika Kelas I Sleman

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Abstract

Microzonation mapping is very necessary in the south Jakarta area because the effects of earthquakes are often felt. This region also has a very high population density. Microzonation is needed to reduce the risk if an earthquake occurs. Another effort to support earthquake microzonation is by conducting site classification. One of the data that can be used is microtremors which are then processed using the Horizontal to Vertical Spectral Ratio (HVSR) method. Furthermore, the HVSR inversion process can be used to obtain the value of the shear wave velocity (Vs). In this research, the creation of a microzonation map includes a dominant frequency map, amplification factor, seismic vulnerability index, and site classification map. The research results show that in the South Jakarta area, especially the Pesangrahan, Kebayoran Lama, Kebayoran Baru, Setiabudi and Tebet districts, the dominant frequency (fo) is relatively low, the amplification factor is relatively high, and the dominant site is classified as medium soil (SD). Based on this, in general the South Jakarta area has a relatively high risk of earthquakes.
Mikrozonasi Seismik Menggunakan Metode Horizontal to Vertical Spectral Ratio (HVSR), Studi Kasus: Institut Teknologi Sumatera (ITERA) Rifa Salma Salsabila; Fattah, Erlangga Ibrahim; Darisma, Dian; Hidayati, Dian Meutia; Hasanah, Uswatun
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 5 (2025): Oktober 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i5.6481

Abstract

Institute of Technology Sumatra (ITERA), as an educational institution located in the Lampung Province, continues to strive for the development of educational support facilities such as lecture halls and laboratories. The ITERA campus is in an area with potential natural disaster threats like earthquakes, due to the tectonic activity of the Great Sumatran Fault and the subduction of the Indo-Australian plate and the Eurasian plate. To mitigate the risk of disasters on the ITERA campus, infrastructure development planning requires a seismic microzonation study. This research was conducted to determine the dominant frequency (f0​), amplification factor (A0​), and seismic vulnerability index (Kg​) using the Horizontal to Vertical Spectral Ratio (HVSR) method. The results show that the dominant frequency (f0​) values range from 1 to 4 Hz, the amplification factor (A0) from 1.8 to 4, and the seismic vulnerability index (Kg​) from 2 to 15. The seismic microzonation map of the ITERA campus, the northern part of the area is categorized as having a medium to high seismic vulnerability index (Kg​), with a low dominant frequency (f0​) and a high amplification factor (A0​).
Co-Authors Bambang Sunardi Darisma, Dian Fattah, Erlangga Ibrahim Hidayati, Dian Meutia Setyoajie Prayoedhie Uswatun Hasanah