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Empirical Landslide Runout Relationships 
Data set V1.0

Brideau, Marc-Andre; de Vilder, Saskia; Massey, Chris; Mitchell, Andrew; McDougall, Scott; Aaron, Jordan (2021) V1.0 Empirical Landslide Runout Relationships, compiled from international examples, for various landslide types. DesignSafe-CI.

Understanding how far a landslide travels from its source and what the landslide may impact is important in order to determine the hazard and risk posed by a landslide. The type of landslide (e.g. a rock avalanche versus a debris flow) and size can determine how far a landslide may runout. To estimate the potential runout area of future landslides, back-analyses of landslides that have already occurred can be used to calculate empirical parameters that predict landslide runout. These parameters are the volume of the landslide and the Fahrböschung angle, which is the angle between the landslide source and the landslide deposit (refer to paper)

The dataset presented here is a compilation a global dataset of over 1100 back-analysed landslides from academic papers and reports where these parameters are reported. The data is presented as csv. files containing information on the landslide location, reference source, volume and all available empirical runout data. The datasets are split into different landslide types, including rock avalanches, debris avalanches, debris flows, fill slope failures and mine waste failures. These datasets can be used by researchers, and geotechnical professionals to conduct forward-looking probabilistic runout analysis for different landslide types.

Landslide Runout Data

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2016 Kaikoura Landslide Inventory Version 2

The latest version (2.0) of the landslide inventory for the 2016 Kaikoura earthquake is available here from the DesignSafe-CI website here.

The Version 2.0 inventory contains nearly 30,000 landslides. The data contains all landslides from Version 1.0, plus additional landslides mapped from the high-resolution aerial photographs. The Version 2.0 inventory is published as points that represent the centroids of the mapped landslide source area. Version 2.0 data is available in both CSV format and in GIS Shapefile format, projected in the NZGD 2000 New Zealand Transverse Mercator coordinate system.

The reference is:

Massey, C. Townsend, D. Rosser, B. Morgenstern, R. Jones, K. Lukovic, B. Davidson, J. (2021) "Version 2.0 of the landslide inventory for the Mw 7.8 14 November 2016, Kaikōura Earthquake", in V2.0 Landslide inventory for the Mw7.8 14 November 2016, Kaikōura Earthquake, New Zealand. DesignSafe-CI.

Our plan is to eventually publish a Version 3.0 inventory, which will contain the landslide source and debris polygons, along with other landslide attributes such as volume. Watch this space.

Landslide Data

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Theme 4: Landslide Runout

Determining how far landslide debris may travel downslope, once triggered
Read More
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