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Journal : Jurnal Fisika

Seismic Vulnerability Microzonation Using Hvsr Method in Kalisalak Hamlet, Garunglor Village, Sukoharjo Sub-District, Wonosobo District Ardiansyah, Adam; Adhi, Aryono; Wibowo, Nugroho Budi; SARWI; Budi Astuti; Cindiwati
Jurnal Fisika Vol. 14 No. 2 (2024): Jurnal Fisika 14 (2) 2024
Publisher : Universitas Negeri Semarang

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Abstract

Kalisalak Hamlet in Sukoharjo District is faced with the risk of landslides that can affect the structure of residents' houses. This study aims to identify potential landslide zones based on the parameters of Dominant Frequency (f_0), Amplification Factor (A_0), and Seismic Vulnerability (K_g)to determine areas that are potentially vulnerable to landslides. Microseismic measurements were carried out at 25 measurement points in the landslide zone. Measurements used a 3-component digital portable seismograph (North-South, West-East, and Vertical). Microseismic data were processed using Geopsy software with the HVSR (Horizontal-to-Vertical Spectral Ratio) method to obtain an H/V curve that provides Dominant Frequency (f_0) and Amplification Factor (A_0) values. The results showed that Kalisalak Village has a dominant frequency value between 3 Hz to 12.5 Hz and an amplification factor value between 1.4 to 6.8. This variation indicates that some areas are more susceptible to seismic vibration amplification. Based on the Dominant Frequency (f_0) value and Amplification Factor (A_0), a Seismic Vulnerability (K_g) microzonation map was created for Kalisalak hamlet with a value range of 0.2 to 7 with a high vulnerability value located in the landslide area south of the village. This map is important for disaster mitigation planning in Kalisalak hamlet.
Co-Authors A. Fauzi Pohan A.A. Ketut Agung Cahyawan W Adam Ardiansyah Adi Susilo Agus Subekti Agus Subekti Agus Suprianto Aji Purwinarko, Aji Anisa, Rahma Darin Ari Setiawan Ari Setiawan Bambang Subali Bilqis El Farsiyyi, Billqis El Farsiyyi Budi Astuti Budi Eka Nurcahya Budi Eka Nurcahya, Budi Eka Budi Naini Mindyarto, Budi Naini Budi Wibowo, Nugroho Cindiwati Danastri L. P. Tampubolon Desi Mustami Limayukha, Desi Mustami Limayukha Ellianawati, Ellianawati Elsa Fadlika Widyantari, Elsa Fadlika Widyantari Farizky Hisyam Fatoni, Iza Handayani, Alifa Tri Herdiyanti, Enesty Ilqia Rahma, Ilqia Rahma Lestari, Putri Yunia Maulida Nur Azzahra Minhat, Minhat Muh Sarkowi Muhammad Fathur Rouf Hasan Muttaqin, Rudhotul Muzli, Muzli Nanik Wijayati Noor, Yusmaniar Afifah Nugroho Budi Wibowo Nuni Widiarti Nurul Priyantari Parmin Pratiwi Dwijananti Prayitno, Wasi Sakti Wiwit Putra, Bayu Ramadhani Putra, Ngurah Made Darma Putut Marwoto Rahmania Sofyana Ulya, Rahmania Sofyana Ulya Rina Dwi Indriana Rooseno, Yohan Rr. Sri Endang Pujiastuti S Mursiti Sarwi Sismanto Sismanto Siti Rohmah Siti Wahyuni Siti Zulaikah Sofian, Sofian Sorja Koesuma Sudarmin Sudarmin Sudarmin Sudarmin Suharto Linuwih Sujabar, Sujabar Sulaiman, Ryan Sunyoto Eko Nugroho, Sunyoto Eko Supriyadi Supriyadi Supriyadi Supriyadi Supriyadi Suryanto, Wiwit Suyanto Suyanto Talitha Widiatningrum Tamba, Shallsa Bella. W Ummi Fauziyah Wahyu Hardyanto Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi Wiyanto - Yayuk Tutiek Supriyanti Yosephine Debbie Damayanti Yosepphiene Debbie Damayani Yusof, Mohammad Mubarrak Mohd