Yesterday, Lindsey Nicholson tweeted a wonderful image<\/a>, taken by Wilfied Braun, showing the full extent of the second landslide:-<\/p>\n The full track of the second of the Joffre Peak rock avalanches in Canad. Image tweeted by Lindsey Nicholson<\/a>, via Geomorphology rules on Facebook<\/a>. Image by Wilfried Braun.<\/p><\/div>\n .<\/p>\n The larger landslide source area is evident on Joffre Peak itself, and the full, chaotic, muddy track is also clear.\u00a0 Interestingly there does not appear to be much super-elevation on the bend, but field work will be needed to determine this for sure.<\/p>\n Collecting good satellite imagery of the landslide in an area with so much cloud is difficult.\u00a0 Simon Gascoin<\/a> tweeted a Landsat 8 image of the first of the two Joffre Peak rock avalanches<\/a>.\u00a0 Planet Labs<\/a> have captured two images of the landslides, but unfortunately neither show the full track at this point.\u00a0 However, they do capture the upper portion of the tracks of the two rock avalanches, allowing the scale of the two to be compared:-<\/p>\n Planet Labs<\/a> imagery of the Joffre Peak rock avalanches. Left hand image, PlanetScope collected 15th May 2019, right hand image PlanetScope collected 18th May. Images copyright Planet Labs<\/a>, used with permission.<\/p><\/div>\n .<\/p>\n The very much larger scale of the second event, with its much broader track, is clear.<\/p>\n Meanwhile, there is some speculation that a further failure event is possible at Joffre Peak, given that the release surface appears to define another large rock block (see the image here<\/a> to see the block that might detach).\u00a0 A collapse is not inevitable, but this would be a great monitoring project.<\/p>\n![\"Joffre](\"https:\/\/blogs.agu.org\/landslideblog\/files\/2019\/05\/19_05-Joffre-5.jpg\")
![\"Joffre](\"https:\/\/blogs.agu.org\/landslideblog\/files\/2019\/05\/19_05-Joffre-6bc.jpg\")
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