Role of landslides on the volume balance of the Nepal 2015 earthquake sequence.

ABSTRACT: The 7.8 M_w earthquake that struck Nepal on April 25th, 2015 triggered over 21,000 landslides over an area of more than 25,000 km². These landslides contributed to mass wasting, partially compensating the tectonic uplift by the earthquake. In this paper we quantify the volume balance resulting from the 2015 earthquake uplift (or subsidence) and landslide erosion. Starting from a new complete earthquake-induced landslide inventory, we calculated landslide volume by adopting different strategies for low-mobility and high-mobility landslides, considering also the potential supply of sediments to the drainage network. The results show that the contribution of earthquake-induced landslides to erosion is about one order of magnitude smaller than the vertical coseismic displa

SUBMITTER: Valagussa A 

PROVIDER: S-EPMC7873231 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature