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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/nhess-2019-202
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2019-202
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 10 Sep 2019

Submitted as: research article | 10 Sep 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Monitoring of the reconstruction process in a high mountainous area affected by a large earthquake and subsequent debris flows

Chenxiao Tang1,2, Xinlei Liu3, Yinghua Cai4, Cees Van Westen2, Yu Yang3,5, Hai Tang3, Chengzhang Yang3, and Chuan Tang3 Chenxiao Tang et al.
  • 1Institute of Mountain Hazard and Environment, Chinese Academy of Sciences, China
  • 2Faculty of Geo-Information Sciences and Earth Observation (ITC), University of Twente, the Netherlands
  • 3State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection (SKLGP), Chengdu University of Technology, China
  • 4Sichuan Institute of Land and Space Ecological Restoration and Geological Hazard Prevention, China
  • 5Station of Geo-environment Monitoring of Chengdu, China

Abstract. Recovering from major earthquakes is a challenge, especially in mountainous environments where post-earthquake mass movements and floods may cause substantial impacts. We monitored the reconstruction of Longchi town in Sichuan, China, over a period of 11 years, following the 2008 Wenchuan earthquake. Seven inventories of buildings, land use, roads and mitigation measures were made by using remote sensing image interpretation and field surveys. Most of the buildings were rebuild by 2010 and reconstruction was completed by 2012. The total economic value of the new buildings in 2010 was much more than the pre-earthquake situation in 2007. Unfortunately, post-seismic hazards were not sufficiently taken into consideration in the recovery planning before the catastrophic debris flow disaster in 2010. As a result, the direct economic loss from post-seismic disasters was more than the loss caused by the earthquake itself. The society showed an impact – adapt pattern, taking losses from disasters and then gaining resistance.

Chenxiao Tang et al.
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