INVERSI MIKROTREMOR UNTUK PROFILING KECEPATAN GELOMBANG GESER (Vs) DAN MIKOROZONASI KABUPATEN BANDUNG

Authors

  • Andina Zuhaera Universitas Lampung, Indonesia
  • Suharno Suharno Universitas Lampung, Indonesia
  • Bagus Sapto Mulyatno Universitas Lampung, Indonesia

DOI:

https://doi.org/10.23960/jge.v5i2.25

Keywords:

microtremor, Vs30, dominant frequency, amplification

Abstract

Bandung Regency is a highland area with a slope between 0 - 8%, 8-15% to above 45%. The district is located at an altitude of 768 m above sea level with the northern region higher than the south. The purpose of this study was to determine the distribution of Vs30 waves and determine the impact of damage due to wave amplification (amplification). To minimize the impact of this earthquake identification can be done including a survey to map soil characteristics in response to earthquake shocks using the seismic Horizontal to Vertical Spectral Ratio (HVSR) method. Based on the results of the study, the distribution of the dominant frequency values, Bandung Regency was identified as having hard and soft rock soil and having solid clay with a thickness of tens of meters. The amplification value in Bandung Regency has a value (0 <Ao <6) which can be categorized that Bandung Regency has a small impact on the earthquake. The difference between the results of inversion processing and HVSR is due to the assumption that the layer inversion is heterogeneous and the HVSR layer is homogeneous.

References

Athanasius, C., dan Solikhin, A., 2015, Pendugaan Kecepatan Gelombang Permukaan (VS30) di Pulau Sulawesi Berdasarkan Klasifikasi Geomorfologi dan Aplikasinya, Bandung: PVMBG.

Kanai, K., 1998. Seismology in Engineering, Japan: Tokyo University.

Lachet, C., dan Brad, P.Y., 1994, Numerical and Theoretical Investigations on The Possibilities and Limitations of Nakamura’s Technique, J. Phys Earth, Vol. 42, pp. 377-397.

Marjiyono, 2010, Estimasi Karakteristik Dinamika Tanah Dari Data Mikrotremor Wilayah Bandung, Bandung: Thesis ITB.

Nakamura, Y., 1989, A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface, Tokyo: Quatrely Reports of the Railway Technical Research Institute.

Nakamura. Y., 2000, Clear Identification of Fundamental Idea of Nakamura’s Technique and Its Application, Japan: Tokyo University.

Netrisa, Z., Syafriani., Triyono, R., dan Arifin, H., 2018, Pemetaan Bahaya Gempabumi Determinitik Dengan Pendekatan PGA Di Kota Padang. Pillar of Physics, Vol.11 No. 2, pp. 41-48.

Susilanto, P., dan Ngadmanto, D., 2015, Analisis Kecepatan Gelombang Geser (VS) di Cilacap, Jawa Tengah sebagai Upaya Mitigasi Gempabumi, Jurnal Meteorologi dan Geofisika (JMG) Vol 16 No 1, pp. 57-64.

Tokimatsu, K., 1995, Geotechnical Site Characterization Using Surface Waves, Japan: Geotechnical Engineering.

van Bemmelen, R. W., 1949, The Geology of Indonesia, I.A: Government Printing Office.

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Published

2020-01-17

How to Cite

Zuhaera, A., Suharno, S., & Mulyatno, B. S. (2020). INVERSI MIKROTREMOR UNTUK PROFILING KECEPATAN GELOMBANG GESER (Vs) DAN MIKOROZONASI KABUPATEN BANDUNG. JGE (Jurnal Geofisika Eksplorasi), 5(2), 89–100. https://doi.org/10.23960/jge.v5i2.25

Issue

Vol. 5 No. 2 (2019)

Section

Articles

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