Seismic Hazard Assessment for Thuong Tan-Tan My Quarries (Vietnam)

  • Cao Dinh Trong
  • Xuan-Nam BUI Hanoi University of Mining and Geology, Hanoi, Vietnam
  • Pham NAM HUNG Institute of Geophysics, VAST, Hanoi, Vietnam
  • Thai ANH TUAN Institute of Geophysics, VAST, Hanoi, Vietnam
  • Mai XUAN BACH Institute of Geophysics, VAST, Hanoi, Vietnam
  • Pham CONG KHAI Hanoi University of Mining and Geology, Hanoi, Vietnam
  • Nguyen VIET NGHIA Hanoi University of Mining and Geology, Hanoi, Vietnam
  • Cao DINH TRIEU Institute for Applied Geophysics, VUSTA, Hanoi, Vietnam
DOI: https://doi.org/10.29227/IM-2020-02-21
Keywords: quarry, Thuong Tan, Tan My, seismic source, triggered earthquake, maximum credible earthquake, incremental stress, Coulomb stress, seismic hazard

Abstract

This paper presents the seismic hazard assessment for Thuong Tan-Tan My quarries in Di An commune, Binh Duong province, Vietnam. Combination methods of gravity and magneto-telluric were used to estimate the dip angle and the width of the seismic source. The highest water column of 160 m will cause direct stress on the reservoir bottom with a maximum value of 1535.600 kPa and Coulomb stress of 68.693 kPa (at a depth of 2 km). The typical components of natural earthquake hazard (Mn.max = 5.0, depth of 10 km) in Thuong Tan - Tan My reservoir have the following values: peak ground acceleration PGA = 0.073 g ÷ 0.212 g; peak ground velocity PGV = 2.662 cm/s ÷ 7.984 cm/s; peak ground displacement PGD = 0.706 cm ÷ 1.918 cm at 10% probability of exceedance in 50 years. The typical components of triggered earthquake hazard (Mtr.max = 3.5, depth of 6 km) in Thuong Tan - Tan My reservoir have the following values: peak ground acceleration PGA = 0.024 g ÷ 0.172 g; peak ground velocity PGV = 0 ÷ 5.484 cm/s; peak ground displacement PGD = 0.061 cm ÷ 0.461 cm at 10% probability of exceedance in 50 years.

Published
2020-10-08
How to Cite
Dinh Trong, C., BUI, X.-N., NAM HUNG, P., ANH TUAN, T., XUAN BACH, M., CONG KHAI, P., VIET NGHIA, N., & DINH TRIEU, C. (2020). Seismic Hazard Assessment for Thuong Tan-Tan My Quarries (Vietnam). Test, 1(2). https://doi.org/10.29227/IM-2020-02-21
Issue
Vol 1 No 2 (2020): Inżynieria Mineralna
Section
ARTICLES

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