18 May 2008 11:28 in Uncategorized by Dave Petley
I thought it would be useful to summarise the key issues / threats associated with landslides in the aftermath of the Sichuan earthquake that I can see at the moment: Delayed landslides from the main earthquake: there is some evidence that there can be a substantial delay between the earthquake and occurrence of large-scale landslides. This is because: i) in some cases pore pressures in slopes take some days to …
18 May 2008 10:40 in Uncategorized by Dave Petley
Reports and images are now emerging of the complete burial of three villages, Donghekou, Ciban and Kangle, located on the Qingzhu river in Sichuan Provinc as a result of (separate) landslides in the Sichuan Earthquake. In particular, images are now available of Doghekou, which is one of the landslides that has blocked the river upstream of Beichuan. These three landslides have together entombed an estimated 300 families, which would indicate …
Tags: 2008, china, earthquake, landslide report, sichuan
17 May 2008 10:29 in Uncategorized by Dave Petley
Now that there is a brief weather window, satellite imagery is starting to emerge of the Sichuan Earthquake zone. At present most of these images are too low resolution to allow detection of the real damage to the buildings (which is notoriously difficult to achieve), but they are excellent for looking at landslides. The best to date that I have seen has come from the Taiwanese Formosat-2 instrument, which is …
Tags: 2008, china, earthquake, images, satellite, sichuan
17 May 2008 06:57 in Uncategorized by Dave Petley
Some information is now becoming available about the impact of landslides in Beichuan. I have blogged before about this. However, a report in the Chinese Economic Observer online is now beginning to highlight just how bad the problem actually has been. This report states the following: In fact, landslides triggered by the May 12 earthquake had exacerbated the destruction in Beichuan. Take Maoba Middle School for instance, all traces of …
Tags: 2008, china, earthquake, landslide report
16 May 2008 04:01 in Uncategorized by Dave Petley
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 …
Tags: 2008, china, earthquake, landslide report
16 May 2008 00:00 in Uncategorized by Dave Petley
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 …
Tags: 2008, china, earthquake, images, sichuan
14 May 2008 08:42 in Uncategorized by Dave Petley
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 . …
Tags: 2008, china, earthquake, sichaun
12 May 2008 08:05 in Uncategorized by Dave Petley
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 …
Tags: 2008, china, disaster, earthquake
4 July 2023 06:58 in Review of a paper by Dave Petley
A new paper in the journal Landslides (Xue et al, 2023) examines the triggering of the December 2020 Qingliucun landslide in Sichuan, China.
Tags: china, East Asia, featured, landslide movement, research, sichuan
7 June 2023 06:33 in Earthquake-induced landslide, Planet Labs by Dave Petley
Landslides from the 5 September 2022 Mw=6.7 Luding Earthquake in Sichuan, China triggered many landslides around the town of Moxi.
Tags: china, coseismic landslide, earthquake, featured, planet, satellite image, sichuan
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