Photograph from the Oliver Daily News, June 17, 2010.
Also on Dave's Landslide Blog on the same day.
New air photos posted on Dave's Landslide Blog show that the landslide in Oliver last Sunday was triggered by the overtopping and eventual failure of a small earthen dam high up in the catchment basin. Rural areas all over the world are littered with these earthen dams (simply piles of soil) and many are old ill-maintained. In this case, hikers had warned authorities two days prior to the failure that the lake behind the dam was overflowing. The dam subsequently failed through the breach shown in the center of the upper photograph. Authorities did not warn those downstream, and there are now demands that there be compensation. An investigation is underway.
In other news today, a wall in a mining pit in Tasmania collapsed, creating a huge rockslide.
And, I've found another very interesting landslide blog in Darjeeling, India, "Save the Hills".