Nepal quake-induced geohazards

On April 25, 2015, a massive earthquake (Gorkha earthquake, Mw7.8) and many aftershocks struck Nepal , killing about 9,000 people and triggering thousands of landslides across the Himalaya. I worked with a NASA-led international group of scientists to map the quake-induced geohazards, including landslide-dammed lakes, that resulted.

Before-and-after photographs of Nepal’s Langtang Valley showing the near-complete destruction of Langtang village due to a massive landslide caused by the 2015 Gorkha earthquake. Photos from 2012 (pre-quake) and 2015 (post-quake) by David Breahshears/GlacierWorks.

Before-and-after photographs of Nepal’s Langtang Valley showing the near-complete destruction of Langtang village due to a massive landslide caused by the 2015 Gorkha earthquake. Photos from 2012 (pre-quake) and 2015 (post-quake) by David Breahshears/GlacierWorks.

 

Kargel, J.S., Leonard, G.J., Shugar, D.H., Haritashya, U.K., and 60 others, 2016Geomorphic and geologic controls of geohazards induced by Nepal’s 2015 Gorkha earthquakeScience, 351: 140. DOI: 10.1126/science.aac8353