Preliminary Canadian Landslide Database

This preliminary landslide database includes 12,760-point features with assigned landslide type, material type (surficial, rock, anthropogenic), point location type (headscarp vs. deposit), and qualitative location confidence (low, moderate, high). Where known, volume estimate, the date of occurrence, trigger, contributing factor, and reference are provided. The inventory contains both landslide events (discrete recorded period of movement) and landslide features (slope with morphology consistent with past or ongoing movement). Most landslides in the inventory have been identified using Google Earth and publicly available lidar. Previously published landslide databases have also been incorporated and referenced. Landslide type attribution should be considered preliminary, and no characterization of the current level of landslide activity or hazard are provided.

Version 11.0 includes the addition of 1,625 landslide features over version 10.1. Highlights of this version include the addition of Dwayne Tannant (landslides from the Okanagan, Shuswap, and Similkameen) and Hazel Wong-Teichroeb (landslides from Yukon and Northwest Territories) as co-authors.

Version 11.0 introduces the sub-divisions of the rock slide landslide type into rock translational slide (well defined planar sliding surface), rock rotational slide (interpreted as approximately circular failure surface), rock irregular slide (irregular failure surface consisting of randomly oriented joints), separated by rock bridges. The rock slide landslide type is still used in situations where the character of the potential failure surface is too uncertain, based on the remote sensing information available, to characterize further. A new attribute was added in version 11.0 to keep track of the version of the database when an entry had its name, landslide type, or location last updated.

Point location and attribute data are provided as .csv file which can be imported in GIS software and as .kmz file for visualization using Google Earth. Summary statistics are provided in a separate spreadsheet. Summary statistics from previous versions are now provided in the different spreadsheet tabs. Release notes from this and previous versions are compiled in an accompanying pdf document.