T188 The Landslide Multi-Hazard Conundrum: What Primary Hazards Trigger Landslides, and How Do Landslides in Turn Cause Secondary Hazards?

Tuesday, 21 October 2014
8:00 AM - 12:00 PM
202/203

AN OVERVIEW OF LANDSLIDE MULTIHAZARD CHAINS IN BRITISH COLUMBIA

Paper number: T188-2
Program: Technical Sessions
Time: 8:10 AM – 8:25 AM

Authors

  • Marten Geertsema Presenting Author
    Ministry of Forests, Lands and Natural Resource Operations, Prince George, BC

Abstract

A wide variety of common natural events in British Columbia can cause landslides. These include wildfires, rainstorms, earthquakes, permafrost degradation, sedimentation, high stream flows, and inundation.

Landslides themselves, can trigger a variety of landslide types. Large landslides are often complex events. Rock falls or slides can trigger movements in soils. Rock slide - debris flow is just one example of a common complex landslide in British Columbia. Terms like "momentum transfer" and "undrained loading" are considered.

Landslides can also cause other destructive non-landslide events to occur. Examples include landslide dams and their lakes, dam burst floods, and landslide displacement waves.