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Increasing risk of cascading hazards in the central Himalayas

Author

Listed:
  • Sanjib Sharma

    (The Pennsylvania State University)

  • Rocky Talchabhadel

    (Texas A&M University)

  • Santosh Nepal

    (International Centre for Integrated Mountain Development (ICIMOD)
    Nepal Office)

  • Ganesh R. Ghimire

    (Oak Ridge National Laboratory)

  • Biplob Rakhal

    (Engineering-GIS, World Food Programme)

  • Jeeban Panthi

    (University of Rhode Island)

  • Basanta R. Adhikari

    (Tribhuvan University)

  • Soni M. Pradhanang

    (University of Rhode Island)

  • Shreedhar Maskey

    (IHE Delft Institute for Water Education)

  • Saurav Kumar

    (Texas A&M University)

Abstract

Cascading hazards are becoming more prevalent in the central Himalayas. Primary hazards (e.g., earthquakes, avalanches, and landslides) often trigger secondary hazards (e.g., landslide dam, debris flow, and flooding), compounding the risks to human settlements, infrastructures, and ecosystems. Risk management strategies are commonly tailored to a single hazard, leaving human and natural systems vulnerable to cascading hazards. In this commentary, we characterize diverse natural hazards in the central Himalayas, including their cascading mechanisms and potential impacts. A scientifically sound understanding of the cascading hazards, underlying mechanisms, and appropriate tools to account for the compounding risks are crucial to informing the design of risk management strategies. We also discuss the need for an integrated modeling framework, reliable prediction and early warning system, and sustainable disaster mitigation and adaptation strategies.

Suggested Citation

  • Sanjib Sharma & Rocky Talchabhadel & Santosh Nepal & Ganesh R. Ghimire & Biplob Rakhal & Jeeban Panthi & Basanta R. Adhikari & Soni M. Pradhanang & Shreedhar Maskey & Saurav Kumar, 2023. "Increasing risk of cascading hazards in the central Himalayas," 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. 119(2), pages 1117-1126, November.
    • Handle: RePEc:spr:nathaz:v:119:y:2023:i:2:d:10.1007_s11069-022-05462-0
    DOI: 10.1007/s11069-022-05462-0
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