Earthquake induced landsliding : earthquakes as erosional agents across timescales Earthquakes deform Earths surface building long lasting topographic features and contributing to landscape and mountain formation.However seismic waves produced by earthquakes may also destabilize hillslopes leading to large amounts of soil and bedrock moving downslope. Moreover static deformation and shaking are suspected to damage the surface bedrock and therefore alter its future properties affecting hydrological and erosional dynamics. Thus earthquakes participate both in mountain building and stimulate directly or indirectly their erosion. Moreover the impact of earthquakes on hillslopes has important implications for the amount of sediment and organic matter delivered to rivers and ultimately to oceans during episodic catastrophic seismic crises the magnitude of life and property losses associated with landsliding the perturbation and recovery of landscape properties after shaking and the long term topographic evolution of mountain belts. Several of these aspects have been addressed recently through individual cas…