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State of Seismic Hazard Analysis: Reviewing the Needs after Mw 7.8 Gorkha, Nepal Earthquake

Author

Listed:
  • Tara Nidhi Bhattarai

    (Department of Geology, Tri-Chandra Campus, Tribhuvan University, Nepal)

  • Takasi Nagao

    (Research Center for Urban Safety and Security (RCUSS), Kobe University, Japan)

  • Tara Nidhi Lohani

    (RCUSS, Kobe University, Japan)

Abstract

Although Nepal experienced Mw 7.8 earthquake in 2015, researchers are arguing that a high magnitude earthquake approaching Mw 9 is likely to occur again in the future. This finding is based on the geodetically measured elastic strain stored at a rate of about 20 mm/year on the Main Himalayan Thrust (MHT) for the last ~>700 years, and also on the findings of paleo seismological studies conducted at some parts of the Terai-Siwalik region of Nepal. Based on literature reviews, this paper provides an overview of geological settings followed by the status of earthquake hazard assessment in Nepal. For better understanding of seismic hazard in community level, “further research needs are identified". It includes, among others, the need of analyzing seismic hazard based on the peak ground velocity (PGV) particularly for those locations which are underlain by thick sediments, and where the trend of high-rise building constructions are also increasing.

Suggested Citation

  • Tara Nidhi Bhattarai & Takasi Nagao & Tara Nidhi Lohani, 2020. "State of Seismic Hazard Analysis: Reviewing the Needs after Mw 7.8 Gorkha, Nepal Earthquake," Journal of Development Innovations, KarmaQuest International, vol. 4(1), pages 48-63, July.
    • Handle: RePEc:kqi:journl:2020-4-1-3
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    References listed on IDEAS

    as
    1. Roger Bilham & Kristine Larson & Jeffrey Freymueller, 1997. "GPS measurements of present-day convergence across the Nepal Himalaya," Nature, Nature, vol. 386(6620), pages 61-64, March.
    2. Hemchandra Chaulagain & Hugo Rodrigues & Vitor Silva & Enrico Spacone & Humberto Varum, 2015. "Seismic risk assessment and hazard mapping in Nepal," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 78(1), pages 583-602, August.
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    Cited by:

    1. Sumit Bikram Rana & Tara Nidhi Bhattrai, 2021. "Challenges of Implementing Disaster Risk Reduction Activities by Local Governments: A Case Study of Shankharapur Municipality in Kathmandu Valley, Nepal," Journal of Development Innovations, KarmaQuest International, vol. 5(2), pages 1-22, December.

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    More about this item

    Keywords

    Himalayan Seismicity; Seismic Hazard; Earthquake; Gorkha; Nepal;
    All these keywords.

    JEL classification:

    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
    • O38 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Government Policy

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