Soil Vulnerability Levels based on Microtremor Data using the HVSR method in the Old City Area of Semarang

Supriyadi Supriyadi, Wahyu Humam Muttaqin, Khumaedi Khumaedi, Sugiyanto Sugiyanto

Abstract

Kota Lama Semarang with the Dutch colonial era relics is currently used as a cultural heritage tourist spot. As a cultural heritage tourism place, it is necessarily aware of the potential for earthquake disasters due to active faults and volcanic eruptions, as well as the phenomenon of land subsidence caused by geological conditions of young alluvium. One of the geophysical techniques to determine subsurface structure is microtremor measurement. This study aims to determine vulnerability level based on dominant frequency, amplification, and seismic vulnerability index using HVSR analysis in Kota Lama area. Microtremor data measurement contained 11 points with a data retrieval duration of 30 minutes. The results of microtremor data analysis obtained dominant frequency values of 7.03 - 19.36 Hz, amplification of 0.72 – 3.7, and seismic vulnerability index of 0.074 – 0.95. Based on the parameters, it can be concluded that the Kota Lama Semarang area has a low level of vulnerability.

Keywords

Seismic Vulnerability Index; HVSR; Kota Lama Semarang

Full Text:

PDF

References

style='mso-ansi-language:IN;mso-bidi-font-weight:bold'>

field-begin;mso-field-lock:yes'>ADDIN Mendeley Bibliography

CSL_BIBLIOGRAPHY Abdelrahman, K., Fnais, M., Abdelmonem, E., Magram, K., & Bin saadoon, A. (2017). Seismic vulnerability assessment in the new urban area of Diriyah Governorate, Riyadh, Saudi Arabia. Arabian Journal of Geosciences, 10(19). https://doi.org/10.1007/s12517-017-3222-7

Abudeif, A., Fat-Helbary, R., Mohammed, M., El-Khashab, H., & Masoud, M. (2019). Estimation of the Site Effect Using Microtremor Technique at New Akhmim City, Akhmim, Sohag, Egypt. Russian Geology and Geophysics, 60(2), 231–239. https://doi.org/10.15372/RGG2019036

Akkaya, İ. (2020). Availability of seismic vulnerability index (Kg) in the assessment of building damage in Van, Eastern Turkey. Earthquake Engineering and Engineering Vibration, 19(1), 189–204. https://doi.org/10.1007/s11803-020-0556-z

Bessy, A., Sianturi, H., & Bernandus. (2018). Pemetaan Nilai Percepatan Tanah Maksimum dengan Metode Deterministic Seismic Hazard Analysis Di Lokasi Pembangunan Observatorium Nasional Desa Bitobe Kecamatan Amfoang Tengah Kabupaten Kupang. Jurnal Fisika Sains Dan Aplikasinya, 3(1), 49–53.

Chemsitra, P., Utama, W., & Syaeful, A. (2018). Identifikasi Litologi Lapisan Sedimen Pada Daerah Karst Pacitan Menggunakan Metode Mikrotremor HVSR. Jurnal Teknik ITS, 7(1), C77–C80.

Chieffo, N., & Formisano, A. (2019). Geo-Hazard-Based Approach for the Estimation of Seismic Vulnerability and Damage Scenarios of the Old City of Senerchia (Avellino, Italy). Geosciences, 9(2). https://doi.org/10.3390/geosciences9020059

Cox, B., Cheng, T., Vantasell, J., & Manuel, L. (2020). A statistical representation and frequency-domain window-rejection algorithm for single-station HVSR measurements. Geophysical Journal International, 221, 2170–2183. https://doi.org/: 10.1093/gji/ggaa119

Hadianfard, M. A., Rabiee, R., & Sarshad, A. (2016). Assessment of Vulnerability and Dynamic Characteristics of a Historical Building Using Microtremor Measurements. International Journal of Civil Engineering, 15(2), 175–183. https://doi.org/10.1007/s40999-016-0086-2

Hidayat, E. (2013). Identifikasi Sesar Aktif Di Sepanjang Jalur Kali Garang, Semarang. JSD.Geol., 23(1), 31–37.

Islam, L., Prasetyo, Y., & Sudarsono, B. (2017). Analisis Penurunan Muka Tanah (Land Subsidence) Kota Semarang Menggunakan Citra SENTINEL-1 Berdasarkan Metode DINSAR pada Perangkat Lunak SNAP. Jurnal Geodesi Undip, 6(2), 29–36.

Jamroni, R., Imran, A., & Azikin, B. (2017). Analysis of Microtremor Data Using Horizontal to Vertical Spectral Ratio (HVSR) Method of Makassar, South Sulawesi. International Journal of Engineering and Science Applications, 4(1), 63–68.

Januarta, G., Yudistira, T., Tohari, A., & Fattah, E. (2020). Mikrozonasi Seismik Wilayah Padalarang, Kabupaten Bandung Barat Menggunakan Metode Horizontal to Vertical Spectral Ratio (HVSR). Jurnal RISET Geologi Dan Pertambangan, 30(2), 143–152. https://doi.org/10.14203/risetgeotam2020.v30.1087

Kanai, K. (1983). Engineering Seismology. University of Tokyo Press.

Kang, S. Y., Kim, K.-H., Chiu, J.-M., & Liu, L. (2020). Microtremor HVSR analysis of heterogeneous shallow sedimentary structures at Pohang, South Korea. Journal of Geophysics and Engineering, 17(5), 861–869. https://doi.org/10.1093/jge/gxaa035

Koesuma, S., Hatmo Putera, M. A., & Darsono, D. (2019). A microtremor analysis for microzonation of seismic vulnerability index by using horiziontal to vertical spectral ratio in the southern area of Klaten regency. Journal of Physics: Conference Series. https://doi.org/10.1088/1742-6596/1153/1/012023

Nakamura, Y. (1989). A Method for Dynamics Characteristics Estimation of Subsurface using Microtremor on The Ground Surface. QR of RTRI, 30(1), 25–33.

Nogoshi, M., & Igarashi, T. (1971). On the Amplitude Characteristics of Microtremor (Part 2). Journal of the Seimological Society of Japan, 24, 26–40.

Pamuk, E., Özdağ, Ö. C., Tunçel, A., Özyalın, Ş., & Akgün, M. (2018). Local site effects evaluation for Aliağa/İzmir using HVSR (Nakamura technique) and MASW methods. Natural Hazards, 90(2), 887–899. https://doi.org/10.1007/s11069-017-3077-y

Parwata, I., Ogawara, K., Tanaka, T., & Osawa, T. (2019). Land Subsidence Monitoring From ALOS/PALSAR Data By Using D-InSAR Technique In Semarang City, Indonesia. International Journal of Environment and Geosciences, 3(1), 1–9.

Prabowo, U., Sehah, & Ferdiyan, A. (2021). Estimasi ketebalan lapisan sedimen permukaan berdasarkan pengukuran mikrotremor di Pemalang, Jawa Tengah. Jurnal Teras Fisika, 4(1), 187–193. https://doi.org/10.20884/1.jtf.2021.4.1.3436

Putri, A., Purwanto, M., & Widodo, A. (2017). Identifikasi Percepatan Tanah Maksimum (PGA) dan Kerentanan Tanah Menggunakan Metode Mikrotremor I Jalur Sesar Kendeng. Jurnal Geosaintek, 3(2), 107–114.

Siska, D., Fithra, H., Lisa, N., Haerudin, N., & Farid, M. (2020). Seismic Vulnerability Mapping to Support Spatial Plans in Lhokseumawe City Area. International Journal on Advanced Science Engineering Information Technology, 10(1), 269–273.

Sulistiawan, H., Supriyadi, & Yulianti, I. (2017). Seismic Hazard Analysis based on Earthquake Vulnerability and Peak Ground Acceleration using Microseismic Method at Universitas Negeri Semarang. Journal of Physics: Conference Series. https://doi.org/10.1088/1742-6596/812/1/012002

Sungkono, & Santoso, B. . (2011). Karakterisasi Kurva Horizontal-to-Vertical Spectra Ratio: Kajian Literatur dan Permodelan. Jurnal Neutrino, 4(1).

Supriyadi, Khumaedi, Sugiyanto, & Hidayatullah, R. . (2018). Identifikasi Ketebalan Lapisan Sedimen dan Struktur Bawah Permukaan di Zona Amblesan Kota Lama Semarang Berdasarkan Data Mikroseismik. Spektra: Jurnal Fisika Dan Aplikasinya, 3(3), 159–166. https://doi.org/doi.org/10.21009/SPEKTRA.033.04

Tanjung, N., Yuniarto, H., & Widyawarman, D. (2019). Analisis Amplifikasi dan Indeks Kerentanan Seismik di Kawasan FMIPA UGM Menggunakan Metode HVSR. Jurnal Geosaintek, 5(2), 60–67. https://doi.org/10.12962/j25023659.v5i2.5726

Toni, M., Yokoi, T., & El Rayess, M. (2019). Site characterization using passive seismic techniques: A case of Suez city, Egypt. Journal of African Earth Sciences, 156, 1–11. https://doi.org/10.1016/j.jafrearsci.2019.05.004

Tün, M., Pekkan, E., Özel, O., & Guney, Y. (2016). An investigation into the bedrock depth in the Eskisehir Quaternary Basin (Turkey) using the microtremor method. Geophysical Journal International, 207(1), 589–607. https://doi.org/10.1093/gji/ggw294

Yamanaka, H., Takemura, M., Ishida, H., & Niwa, M. (1994). Characteristics of Long-Period Microtremors and Their Applicability in Exploration of Deep Sedimentary Layers. Bulletin of The Seismological Society of America, 84(6), 1831–1841.

font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";

color:black;mso-ansi-language:IN;mso-fareast-language:EN-US;mso-bidi-language:

AR-SA'>

DOI: https://doi.org/10.20961/jphystheor-appl.v6i1.59119

Refbacks

  • There are currently no refbacks.