A massive November 2020 landslide and glacial lake outburst near Bute Inlet in BC created a seismic signal equivalent to a 4.9 magnitude earthquake! On November 28, 2020, at about 6 a.m., approximately 18.5 million cubic meters of rock dropped from a mountain, slid roughly one kilometer, and impacted the lake at the base of a retreating glacier. The resulting glacial lake outburst created a tsunami 100 meters high and unleashed horrendous devastation for 13 miles downstream in Elliot Creek, forever impacting the landscape there. There is an article about the event in The Tyee, an independent online news magazine in BC. The video below has aerial footage of the aftermath of the event, which wasn’t actually located until later in December because of the remote nature of the site. As always, Dave Petley has a nice discussion of the event on the Landslide Blog. Thanks to the GBA where I first heard of this event.
Related Articles
Video: Rockslide on U.S. Highway 64 in Tennessee
Amazing video of a rockslide as it happened yesterday along U.S. Highway 64 in the Ocoee River gorge in Tennessee. TDOT crews had almost finished removing rockslide debris from an event earlier in the day when a second slide occurred, blocking the road again. That looks like a pretty planar joint set dipping right into the roadway and everything was wet from the recent rains. Click through for the video.
China Flooding and Landslides – Three Gorges Dam Being Tested
August 3, 2010
rockman
Geologic Hazards
Comments Off on China Flooding and Landslides – Three Gorges Dam Being Tested