Author Archives: petequinn

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.

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, it appears that sensitive clay failed near the quarry and … Continue reading

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Buying and selling a house, some thoughts from an “experienced” mover

My wife is in the military, as was I for the first part of my career, and a key aspect of the military lifestyle is frequent transfers. I’ve had the pleasure of living on both coasts of Canada, on the … Continue reading

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