This blog provides commentary on interesting geological events occurring around the world in the context of my own work. This work is, broadly, geological fluid dynamics. The events that I highlight here are those that resonate with my professional life and ideas, and my goal is to interpret them in the context of ideas I've developed in my research. The blog does not represent any particular research agenda. It is written on a personal basis and does not seek to represent the University of Illinois, where I am a professor of geology and physics. Enjoy Geology in Motion! I would be glad to be alerted to geologic events of interest to post here! I hope that this blog can provide current event materials that will make geology come alive.

Banner image is by Ludie Cochrane..

Susan Kieffer can be contacted at s1kieffer at gmail.com

Monday, August 9, 2010

Large Landslide in British Columbia, Canada

On August 6, a melting glacier in British Columbia, Canada, was reported to have triggered a massive muddy landslide at 5:30 a.m. Later reports, still somewhat confusing, say that it was actually the Capricorn glacier itself that gave way. The area affected is about 150 miles north of Vancouver, British Columbia.  This is an area of unstable volcanic rocks prone to landslides.  The estimated volume of the slide is estimated to be 40 million cubic meters, and is the second largest slide in Canadian history, the largest being the Hope slide of 1965 that had a volume of 46-million cubic meters.  The new slide is being referred to as the Mount Meager slide.  The slide stopped in the area where Megher Creek intersects the Lillooet River, and temporarily damed the Lillooet.  A temporary lake was formed containing 1.5 - 3 million cubic meters of water, but breached through the dam early in the morning of August 7 (3:00 a.m.)  It cut a breach between 25-50 meters wide (contrast this to the on-going drama at Attabad in Pakistan). Further information is here, as well as more photos. The photo attached was taken by "Bonny Makarewicz, Special to the [Vancouver] Sun", and can be found in the reference cited.

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