An improved method of Newmark analysis for mapping hazards of coseismic landslides

Zang, Mingdong; Qi, Shengwen; Zou, Yu; Sheng, Zhuping; Zamora, Blanca S.

doi:https://doi.org/10.5194/nhess-20-713-2020

Articles | Volume 20, issue 3

https://doi.org/10.5194/nhess-20-713-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-20-713-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 3

Research article

|

04 Mar 2020

Research article |

| 04 Mar 2020

An improved method of Newmark analysis for mapping hazards of coseismic landslides

Mingdong Zang, Shengwen Qi, Yu Zou, Zhuping Sheng, and Blanca S. Zamora

Data sets

ASTER Global Digital Elevation Model version 002 NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team https://doi.org/10.5067/ASTER/ASTGTM.002

Short summary

Coseismic landslides often cause loss of life and property damage. Accurately mapping hazards is very important and challenging work. This paper considers the roughness and size effect of the potential sliding surface unloading joint and then presents an improved method of Newmark analysis for mapping hazards of coseismic landslides. The approach is verified using the M_w 6.1 Ludian earthquake in 2014 and compared with a conventional Newmark analysis using area under the curve analysis.