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16 October 2010
Round up of landslide stories and events for the last week
In weeks in which I have been too busy to post a great deal of material, I often provide a summary of interesting landslide events around the world. This is the summary for the last week:1. A very strange landslide in Germany Thanks once again to Peter Diehl, the prize for bizarre landslide event of the week goes to a very strange event at a former lignite mine near Hoyerswerda, …
31 August 2010
Catching up – recent landslide events
The next few posts will be an attempt to catch up on the things that I missed whilst on vacation in Switzerland last week. Thanks to the many people who have tipped me off about landslide events. I will cover Pakistan in another post.1. A large flow in AustriaThanks to Martin Springer for highlighting this one. On Saturday 21st August a severe storm triggered a 100,000 cubic metre flow in …
27 August 2010
Amazing new rockfall video from Yosemite
Thanks to Greg Stock for bringing this one to my attention. Yosemite National Park have produced a video providing information for visitors about the hazards associated with rockfalls. It includes an extraordinary piece of footage – captured by a visitor to the park – of a rockfall detaching from the cliff, fragmenting on impact on the the slope, and then travelling down the talus slope. The video of the detachment …
5 March 2010
New rockslide video: Highway 96 at Klamath River near the Siskiyou-Humboldt county line
Thanks to Kyle House of the Nevada Bureau of Mines and Geology for bringing this one to my attention. A great new video was posted yesterday showing a rockslide onto Highway 96 at Klamath River near the Siskiyou-Humboldt county line in California. The video should be embedded below: http://vimeo.com/moogaloop.swf?clip_id=9836643&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1 Rock slide on Hwy 96 in Northern California near the Humboldt/Siskiyou County line. from Paul Hailey on Vimeo. Well worth a …
18 February 2010
Impressive roadside landslide in Pomona, California
Thanks to reader CConkle for the heads-up on this one. An impressive slide happened this morning by the side of Freeway 10 near to Pamona in California. The slide has completely blocked the road (pictures from the LA Times): It is uite interesting that the weather does not indicate an obvious trigger for what appears to be a failure on a reprofiled slope. However, California has suffered recent exceptional rainfall …
7 February 2010
Mudslides occur in the areas affected by the 2009 Station Fire in Los Angeles
The Station Fire was a huge forest fire that occurred on the northern edge of Los Angeles in late 2009:It was finally brought under control on 16th October 2009, by which time it had burnt a huge area, thought to be over 160,000 acres (image from NASA): In the aftermath of the fire considerable concern has been expressed about the potential for damaging mudflows in the burnt area, magnified by …
4 February 2010
The Rivermist subdivision in San Antonio, Texas is on the move again – and it is a rotational retaining wall failure
The woes of the families displaced by the slope failure at the Rivermist Subdivision in San Antonio, Texas have been exacerbated by a new phase of movement. AP Texas News reports that heavy rain has triggered additional cracking of the wall, and the movement of some debris. However, the houses at the top of the slope are apparently not moving. I have been wondering why they are so confident that …
26 January 2010
The San Antonio retaining wall collapse – did the developer have a permit?
Reports suggest that ground movement has ceased in the Rivermist subdivision, which suffered a fairly spectacular retaining wall failure over the last few days. Attention is now focussing upon that retaining wall – and in particular on why it failed. This is a pretty key issue given the potential liabilities and its magnitude – the wall is 1000 feet (>300 m long). Press reports note two interesting aspects of this …
25 January 2010
Ongoing massive retaining wall failure in San Antonio, Texas, USA
Updated here In the United States there is an interesting developing story about a large-scale retaining wall failure that is causing the collapse of a housing estate in San Antonio, Texas. The housing development, called the Rivermist subdivision, is the one shown in the Google Earth image below. It is still under construction. The marker shows the approximate location of the slide, as far as I can tell: According to …
Dave Petley is the Vice-Chancellor of the University of Hull in the United Kingdom. His blog provides commentary and analysis of landslide events occurring worldwide, including the landslides themselves, latest research, and conferences and meetings.
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