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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 …
18 January 2010
Potential landslides in California and the ongoing crisis in Hunza, Pakistan
Amongst the (appropriate) focus upon Haiti at the moment, we must of course remember that landslides do not stop elsewhere. So, here are two important ongoing stories: 1. Potential landslides in California this week:The US National Weather Service has issued a series of warnings for very heavy rainfall in California this week, with the pontential for landslides, flash flood and debris flows. For example: …Flash flooding and debris flows possible …
15 September 2009
Interesting landslide footage from La Jolla, California
Image from here The La Jolla landslide in San Diego California occurred in October 2007, destroying three houses and a road, and leaving many more damaged. The landslide is currently the subject of a lawsuit that was filed by the householders. I am not going to comment further on the slide whilst this is going on, but as part of the evidence in the case some mobile phone footage has …
5 May 2009
Nailing Jell-o to a wall…
This is a guest post from Bill Rabenaldt from California about a novel soil nail mitifation technique. Can you nail jell-o to a wall? Not easily. Can you nail a landslide area, levee or bluff before it fails? You bet! The valley floors around Aspen, Telluride and other resort areas in the Rockies are all but built out. Where do business and families go? The surrounding hills and mountain sides …
11 March 2009
USGS educational video on landslides in the San Francisco Bay Area
Thanks to the Geology blog In Terra Veritas for highlighting a USGS video on landslides in the San Francisco Bay area. The video is a useful teaching / background resource, especially in terms of the way that it highlights the impacts of landslides on home owners, which is easily forgotten by both students and their teachers. The video compares two different slides; first, the Love Creek Heights landslide in the …
2 December 2008
Burning landslides revisited…
Back in August I posted on the strange phenomenon of burning landslides. This is an interesting and surprisingly common phenomenon in which a slope failure exposes materials in the soil or rock that oxidises to generate large amounts of heat. At times this effect can be strong enough to actually ignite – in Dorset in England for example organic matter in the Kimmeridge Clay (which is the main source rock …
20 August 2008
La Conchita landslide verdict
Many readers will be familiar with the La Conchita landslide in California. For those who aren’t, La Conchita a small (population about 340 people), unincorporated seaside village located on the Pacific coast north of Los Angeles (Fig. 1) (34.4 degrees north, 119.5 degrees west). The town is located on a narrow coastal plain, with a steep slope behind. The houses are very close to the foot of the slope (Fig …
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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