Increasing risk of cascading hazards in the central Himalayas

Sanjib Sharma, Rocky Talchabhadel (), Santosh Nepal, Ganesh R. Ghimire, Biplob Rakhal, Jeeban Panthi, Basanta R. Adhikari, Soni M. Pradhanang, Shreedhar Maskey and Saurav Kumar
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Sanjib Sharma: The Pennsylvania State University
Rocky Talchabhadel: Texas A&M University
Santosh Nepal: International Centre for Integrated Mountain Development (ICIMOD)
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

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2023, vol. 119, issue 2, No 17, 1117-1126

Abstract: 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.

Keywords: Central Himalayas; Cascading hazards; Hazard predictions; Risk; Mitigation and adaptation; Risk management (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s11069-022-05462-0

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