Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/esurf-7-707-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-7-707-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Research article
 | 
06 Aug 2019
Research article |  | 06 Aug 2019

Displacement mechanisms of slow-moving landslides in response to changes in porewater pressure and dynamic stress

Jonathan M. Carey, Chris I. Massey, Barbara Lyndsell, and David N. Petley

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Short summary
Slow-moving landslides are a major hazard but their movement mechanisms during earthquakes and rainstorms are not fully understood. We collected samples from a slow-moving landslide complex in New Zealand and subjected them to a range of porewater pressure and dynamic stress scenarios in a dynamic back-pressured shear box. Our results show how the complex movement patterns, observed in many large slow-moving landslides, may be mobilized by strong earthquakes and significant rain events.
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