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16 May 2008
Updated 18th May: Reported landslides from the 2008 Sichuan Earthquake
I am starting a second thread here to document landslides reported in the Sichuan earthquake. Background information about landslides and the earthquake is provided in the post below. I will update this list as new information becomes available. I would really welcome any information that can be provided – please email me ( [email protected] ) or post a comment. General observation: as feared, landslides have taken a terrible toll in …
Updated 16th May (twice): Sichuan Earthquake landslide images
I thought a thread showing some news images of landslides triggered by the Sichuan earthquake would be useful. The first image shows vividly the likely impact of landslides in this area. AP photo entitled “Buildings are destroyed by landslides following Monday’s powerful magnitude 7.9 earthquake in Beichuan in Mianyang city in southwest China’s Sichuan Province Tuesday, May 13, 2008. A signboard atop the building at left reads: Beichuan Hotel” Xinhua …
15 May 2008
The Dorset landslide revisited
It is now sensible to revisit the 7th May Dorset landslide, upon which I blogged here. Now, eight days on, it is clear that there was a slight media over-reaction to this event, probably spurred by reported comments that this was the largest failure for a century. It wasn’t. The image below from the BBC, clearly shows what actually happened. A section of cliff has collapse from the Blue Lias …
14 May 2008
Sichuan landslide problems – the seasonal issue
To illustrate the problems with landslides that the Chinese authorities now face, I have plotted the occurrence of rainfall induced landslides in Sichuan for 2005, 2006 and 2007 by month, using data from the Durham University landslide database. We know that the occurrence of landslides increases dramatically after large earthquakes, especially in the rainy season. Figure 1 shows that landslides in Sichuan occur in the period May to September . …
12 May 2008
Landslides from the 12th May 2008 Sichuan Earthquake
12th May @ 07:27 UT: News reports this morning are suggesting that there has been a large, shallow earthquake in Sichuan Province, China. Initial estimates from the USGS are that this was a M = 7.5 (NB this has now been corrected to MW=7.9) event located at just 10 km, although clearly this will need updating. If so, it is reasonable to assume that this earthquake will have triggered large …
7 May 2008
Black Ven landslide in Dorset
NOTE: see follow-up blog here, outlining why this landslide is not as large or significant as was initially reported. ——————-Update: ITV have a low res video of the landslide site here. This confirms the general location and shows that the failure is indeed large.——————-Update 2: The BBC now have some good aerial footage of the landslide here. It is slightly intriguing as it appears that the slide is wide but …
2 May 2008
April 2008 landslide map
The map below shows the distribution of fatal landslides for April 2008. The statistics are:Number of fatal landslides: 12Number of fatalities: 33 As I predicted in March, April was once again very substantially below the average for 2003-2007, which is 96 fatalities per year. The distribution is very random, with absolutely no clear pattern. Two fatal landslides occurred in the Himalayan Arc, which is a sign of things to come …
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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