140 GSA Special Nepal (Gorkha) Earthquake Session (Posters)

Monday, 2 November 2015
9:00 AM - 6:30 PM
Exhibit Hall

THE EFFECT OF LANDSLIDE AND GEOLOGICAL STRUCTURE ON THE BUILDING DAMAGES CAUSED BY THE 2015.4.25 MW7.8 GORKHA EARTHQUAKE, NEPAL, AND THE KALIGANDAKI LANDSLIDE DAM

Paper number: 140-3
Program: Special Session
Time: 9:00 AM – 6:30 PM

Authors

Abstract

The Gorkha earthquake occurred at 11:56 NST on 25 April 2015. The focal depth is about 15 km. The epicenter is 77 km northwest of Kathmandu. Based on the information from United Nations, eight million people have been affected by the massive earthquake in Nepal, more than a quarter of the Nepal’s population.

To understand the damages caused by the earthquake, and hope to find a solution to reduce the geo-disaster in Nepal, from 2 to 9 June 2015, we conducted a preliminary investigation on the 2015 Gorkha earthquake.

In this report, the observation, investigation and measurements on the following five geological settings are described in details.

  1. Cultural heritage and building damage in Katmandu (lake deposits)

  2. House damage in Chautara and Gorkha (narrow mountain ridge)

  3. House damage in Sankhu (Alluvium fan)

  4. House damage in Purano Naikap (landslide area)

  5. Landslide dams