Climate Change Research ›› 2020, Vol. 16 ›› Issue (4): 405-414.doi: 10.12006/j.issn.1673-1719.2019.174

• Disaster Responses to Climate Change • Previous Articles     Next Articles

Compound effects of earthquakes and extreme weathers on geo-hazards in mountains

SHI Pei-Jun1,2,3(), YANG Wen-Tao4   

  1. 1 State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
    2 Academy of Disaster Reduction and Emergency Management, Ministry of Emergency Management and Ministry of Education & Beijing Normal University, Beijing 100875, China
    3 Academy of Plateau Science and Sustainability, People's Government of Qinghai Province & Beijing Normal University, Xining 810008, China
    4 School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
  • Received:2019-07-25 Revised:2019-10-28 Online:2020-07-30 Published:2020-08-05


Studying interplays among different geo-hazard triggers is crucial for mitigating integrated hazard risks and sustaining sustainability in mountain communities. Extreme precipitation and strong seismicity in mountain environment are major triggers for initiation of geo-hazards, such as landslides. Traditional studies on geo-hazards have been extensively carried out by treating them with single triggers, yet compound effects of earthquakes and extreme weathers on geo-hazards initiations have largely been ignored. Regional-scale geo-hazard cases that were jointly caused by earthquake and extreme weather have been reviewed to analyze the interplay between both triggers in initiating geo-hazards. Three major points can be drawn from existing literatures: 1) strong mountain earthquakes can alter mountain environments, which could significantly increase the likelihood of geo-hazards' initiations and magnify its magnitude; 2) this magnifying effect decays with time and may be controlled by climate; 3) extreme weathers have been increasing under climate change and its coalition with strong earthquakes in tectonic mountains will lead to more complicated problems. Due to a lack of observations, joint triggering mechanism of extreme weathers and earthquakes on geo-hazard initiation remains elusive.

Key words: Extreme weathers, Mountain earthquakes, Hazards coalition, Geo-hazards' chain, Climate change

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