Earthquake-induced landsliding: Impacts of earthquakes on landscape across timescales.

Earthquakes impart a catastrophic forcing on hillslopes, that often lead to widespread landsliding and can contribute significantly to sediment and organic matter fluxes. We quantified and modeled some processes associated with earthquake ground shaking at short (~ day), intermediate (~ year) and long (100,000 years) timescales. We will present successively:
1/ A seismologically-consistent expression for the total volume of earthquake triggered-landslides.
2/ Landslide susceptibility time series and geophysical monitoring revealing coseismic damage and post-seismic healing of the shallow ground.
3/ Modelling of the competition between coseismic uplift and earthquake induced landsliding, and implications for the role of earthquakes in mountain building.