Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/esurf-7-681-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-7-681-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Research article
 | 
24 Jul 2019
Research article |  | 24 Jul 2019

Statistical modelling of co-seismic knickpoint formation and river response to fault slip

Philippe Steer, Thomas Croissant, Edwin Baynes, and Dimitri Lague

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Short summary
We use a statistical earthquake generator to investigate the influence of fault activity on river profile development and on the formation of co-seismic knickpoints. We find that the magnitude distribution of knickpoints resulting from a purely seismic fault is homogeneous. Shallow aseismic slip favours knickpoints generated by large-magnitude earthquakes nucleating at depth. Accounting for fault burial by alluvial cover can modulate the topographic expression of earthquakes and fault activity.
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