About the project

About the project

Project background

The 2015 earthquakes triggered over 22,000 landslides across 14 districts of Central Nepal. In the aftermath of the earthquake, the National Reconstruction Authority (NRA) identified c. 500 settlements that require field-based geo-hazard assessments prior to permitting reconstruction. The damage to the hillslopes during the earthquakes has resulted in an increased probability of landsliding during the following monsoon seasons (2015 and onwards). This increased level of landsliding is anticipated to last for at least 5 to 10 years and is likely to have a major impact on the road network, the reconstruction, and on personal safety. There has been a limited coordinated effort to assess post-earthquake landslide hazard, and in particular the evolving landslide hazard and exposure due to the monsoons. This information is vital to feed into NRA activities. It is especially critical to account for the change in landslide hazard over time, and to move beyond planning that is based only on a static assessment of current risk. This website outlines work by Durham University on mapping and modelling post-earthquake landslides, funded in part by the Department for International Development (DFID) and in collaboration with NSET-Nepal.

Our aims

  1. Assess the pattern and rate of landsliding by mapping the 14 worst-affected districts between 2014 – 2018;
  2. Use these data to generate an up-to-date district-scale landslide risk assessment, to feed into the NRA for planning and programming;
  3. Monitor selected landslide demonstration sites on the ground, to validate our observations in satellite imagery and to support remediation works by the NRA;
  4. Promote the outputs of this work with those agencies tasked with managing landslide risk in Nepal.

In doing this, we seek to provide DFID with the best possible data on the landslide situation in the run-up to the 2017 and 2018 monsoons and beyond, and to build the local capacity that will be required to sustain this ongoing hazard and risk assessment after 2018.

A makeshift trail crosses the remains of a landslide caused by the March 2015 earthquake, which wiped out the original stretch of trail, near Phakding. By Niklassletteland (Own work) [CC BY-SA 3.0], via Wikimedia Commons