Hazard and risk from large landslides from Mount Meager volcano, British Columbia, Canada

Recommendations for the quantitative analysis of landslide risk

“…For local scale analysis of single landslides, it is possible to simulate various scenarios with different volumes and associated probabilities (e.g. M-F relationships) through numerical models in order to determine the spatial distribution of intensity during landslide movement (Archetti and Lamberti 2003;Jaboyedoff et al 2005;Friele et al 2008). Hence, for each location on the slope, it is possible to build the intensity-frequency curves by adopting the frequency values of M-F relationships and the intensities calculated by the models .…”

The 6 August 2010 Mount Meager rock slide-debris flow, Coast Mountains, British Columbia: characteristics, dynamics, and implications for hazard and risk assessment

“…The MMVC is arguably the most landslide-prone region in Canada (Friele et al, 2008;Friele and Clague 2009); at least 25 landslides ≥0.5 × 10 6 m 3 are known to have occurred in the last 10 000 yr (Table 1). Numerous landslides, less than 0.5 × 10 6 m 3 in volume, have been identified from Mount Meager (Jordan, 1994;Jakob, 1996).…”

A Review of Three Significant Geohazards in the Canadian Cordillera: the Case of River Floods, Debris Flows/Floods, and Debris/Rock Avalanches

“…Meager based on large mass movement events (greater than 10 6 m³). The calculated mean denudation rate is 3 mm yr -¹ or 3,000 Bubnovs, which is at least 50 times higher than the average for hyper maritime areas of BC (Friele et al 2008). Areas of the Canadian Cordillera that have been the sites of Quaternary volcanism are the extreme end member of "nonglacial processes conditioned by glaciation" and they are the loci of the most frequent large Holocene landslides (Friele and Clague 2009).…”

“…Jordan and Slaymaker (1991) described a previously unaccounted source of contemporary sediment production, namely the weathering products of the Quaternary volcanics and flood sediments associated with extension of land use on river floodplains. Friele et al (2008) and Friele and Clague (2009) have identified the Garibaldi Quaternary Volcanic Centre as an end member in the spectrum of landscape response to Pleistocene deglaciation. Postglacial sediment yield in major river basins reflects the successive effects of paraglaciation, volcanism, human impact, and glacier recession, all of which mark stages in the Holocene transition (Church and Slaymaker 1989).…”