American Journal of Environmental and Resource Economics

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Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam)

Received: 24 May 2017    Accepted: 03 June 2017    Published: 24 July 2017
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Abstract

The goal of the paper is to delineate the hierarchical block- structure in the Tuan Giao area (Northwest Vietnam) and, on that base, to identify earthquake prone areas for M5+. Four large geoblocks of the second rank have been delineated on the basis of the joint analysis of geological, geophysical, geomorphic, and remote sensing data. The second rank geoblocks have been divided into smaller sub-blocks of the third rank. The recent geodynamics of the geoblocks have been characterized using geomorphic, seismological, gravity, and GPS data. The system of the delineated geoblocks is viewed as the Geodynamic Blocks model (GB). Earthquake prone areas for M5+ have been identified with the pattern recognition algorithm CORA-3. The objects of the recognition were defined as the circular areas where boundaries of the geoblocks intersect each other. The results of the recognition confirms high seismic potential of the study region and provides information on potential earthquake sources for seismic hazard assessment: a number of boundary intersections have been identified as prone to M5+ in the areas where events of such size are not recorded up to date.

DOI 10.11648/j.ajere.20170203.16
Published in American Journal of Environmental and Resource Economics (Volume 2, Issue 3, August 2017)
Page(s) 132-150
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Geoblocks, Pattern Recognition, Earthquakes, Boundary Intersections, Tuan Giao

References
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Author Information
  • Department of Tectonophysics, Institute of Geophysics, VAST, A8, 18 Hoang Quoc Viet, Nghia Do, Cau Giay Hanoi, Vietnam

  • Departments of Geodynamic, Institute of Geophysics, VAST, A8, 18 Hoang Quoc Viet, Nghia Do, Cau Giay Hanoi, Vietnam

  • Departments of Geodynamic, Institute of Geophysics, VAST, A8, 18 Hoang Quoc Viet, Nghia Do, Cau Giay Hanoi, Vietnam

  • Institute of Marine Geology and Geophysics, VAST, A27, 18 Hoang Quoc Viet, Nghia Do, Cau Giay Hanoi, Vietnam

  • Institute of Marine Geology and Geophysics, VAST, A27, 18 Hoang Quoc Viet, Nghia Do, Cau Giay Hanoi, Vietnam

  • Gasgeochemistry Laboratory, V. I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation

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  • APA Style

    Nguyen Huu Tuyen, Pham Nam Hung, Cao Dinh Trong, Nguyen TrungThanh, Phung Van Phach, et al. (2017). Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam). American Journal of Environmental and Resource Economics, 2(3), 132-150. https://doi.org/10.11648/j.ajere.20170203.16

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    ACS Style

    Nguyen Huu Tuyen; Pham Nam Hung; Cao Dinh Trong; Nguyen TrungThanh; Phung Van Phach, et al. Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam). Am. J. Environ. Resour. Econ. 2017, 2(3), 132-150. doi: 10.11648/j.ajere.20170203.16

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    AMA Style

    Nguyen Huu Tuyen, Pham Nam Hung, Cao Dinh Trong, Nguyen TrungThanh, Phung Van Phach, et al. Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam). Am J Environ Resour Econ. 2017;2(3):132-150. doi: 10.11648/j.ajere.20170203.16

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  • @article{10.11648/j.ajere.20170203.16,
      author = {Nguyen Huu Tuyen and Pham Nam Hung and Cao Dinh Trong and Nguyen TrungThanh and Phung Van Phach and Renat Shakirov},
      title = {Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam)},
      journal = {American Journal of Environmental and Resource Economics},
      volume = {2},
      number = {3},
      pages = {132-150},
      doi = {10.11648/j.ajere.20170203.16},
      url = {https://doi.org/10.11648/j.ajere.20170203.16},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajere.20170203.16},
      abstract = {The goal of the paper is to delineate the hierarchical block- structure in the Tuan Giao area (Northwest Vietnam) and, on that base, to identify earthquake prone areas for M5+. Four large geoblocks of the second rank have been delineated on the basis of the joint analysis of geological, geophysical, geomorphic, and remote sensing data. The second rank geoblocks have been divided into smaller sub-blocks of the third rank. The recent geodynamics of the geoblocks have been characterized using geomorphic, seismological, gravity, and GPS data. The system of the delineated geoblocks is viewed as the Geodynamic Blocks model (GB). Earthquake prone areas for M5+ have been identified with the pattern recognition algorithm CORA-3. The objects of the recognition were defined as the circular areas where boundaries of the geoblocks intersect each other. The results of the recognition confirms high seismic potential of the study region and provides information on potential earthquake sources for seismic hazard assessment: a number of boundary intersections have been identified as prone to M5+ in the areas where events of such size are not recorded up to date.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Geoblocks Delineation and Recognition of Earthquake Prone Areas in the Tuan Giao Area (Northwest Vietnam)
    AU  - Nguyen Huu Tuyen
    AU  - Pham Nam Hung
    AU  - Cao Dinh Trong
    AU  - Nguyen TrungThanh
    AU  - Phung Van Phach
    AU  - Renat Shakirov
    Y1  - 2017/07/24
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ajere.20170203.16
    DO  - 10.11648/j.ajere.20170203.16
    T2  - American Journal of Environmental and Resource Economics
    JF  - American Journal of Environmental and Resource Economics
    JO  - American Journal of Environmental and Resource Economics
    SP  - 132
    EP  - 150
    PB  - Science Publishing Group
    SN  - 2578-787X
    UR  - https://doi.org/10.11648/j.ajere.20170203.16
    AB  - The goal of the paper is to delineate the hierarchical block- structure in the Tuan Giao area (Northwest Vietnam) and, on that base, to identify earthquake prone areas for M5+. Four large geoblocks of the second rank have been delineated on the basis of the joint analysis of geological, geophysical, geomorphic, and remote sensing data. The second rank geoblocks have been divided into smaller sub-blocks of the third rank. The recent geodynamics of the geoblocks have been characterized using geomorphic, seismological, gravity, and GPS data. The system of the delineated geoblocks is viewed as the Geodynamic Blocks model (GB). Earthquake prone areas for M5+ have been identified with the pattern recognition algorithm CORA-3. The objects of the recognition were defined as the circular areas where boundaries of the geoblocks intersect each other. The results of the recognition confirms high seismic potential of the study region and provides information on potential earthquake sources for seismic hazard assessment: a number of boundary intersections have been identified as prone to M5+ in the areas where events of such size are not recorded up to date.
    VL  - 2
    IS  - 3
    ER  - 

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