Fatal (?) Landslide in L’Epiphanie, Quebec, 29 January 2013

Sadly, it appears that two quarry workers were buried by a landslide that occurred at L’Epiphanie, Quebec on Tuesday, 29 January, 2013.  From the available video and photos at ctv.ca, it appears that sensitive clay failed near the quarry and flowed into the quarry, filling some part of the working pit and burying at least one truck.

In a recent (2012) post on this blog I had presented a draft manuscript describing a process for mapping landslide risk in eastern Canada associated with large landslides in sensitive clay.  You can search the “landslides” or “draft manuscripts” sections of this blog to find that post, entitled “Sensitive Clay landslide risk in eastern Canada (DRAFT paper).”

The image below, previously prepared to show that the last fatal landslide in the study area (St-Jude in 2010) had occurred in an area mapped as high risk.  Yesterday’s event at L’Epiphanie is also in an area of high risk.



The following two images show the quarry and landslide (to the right and background), followed by a close up of the buried truck and rescue operations, from ctv.ca.

quarry and landslide

quarry and landslide

bureid truck

bureid truck


About petequinn

I'm a Canadian geotechnical engineer specializing in the study of landslides. I started this page to discuss some mathematical topics that interest me, initially this involved mostly prime numbers, but more recently I've diverted focus back to a number of topics of interest in geotechnique, geographic information systems and risk. I completed undergraduate training in engineering physics at Royal Military College (Kingston, Ontario), did a masters degree in civil (geotechnical) engineering at University of British Columbia (Vancouver), and doctorate in geological engineering at Queen's University (Kingston). I was a military engineer for several years at the beginning of my career, and did design and construction work across Canada and abroad. I've worked a few years for the federal government managing large environmental clean up projects in Canada's arctic, and I've worked across Canada, on both coasts and in the middle, as a consulting geotechnical engineer. My work has taken me everywhere in Canada's north, to most major Canadian cities and many small Canadian towns, and to Alaska, Chile, Bermuda, the Caribbean, Germany, Norway, Sweden, Bosnia, and Croatia. My main "hobby" is competitive distance running, which I may write about in future.
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