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2 October 2009
Typhoon Parma update, plus landslides in Indonesia, India, Sicily, Samoa, Cambodia and Vietnam
I am struggling to keep up with the natural disasters at the moment. The main point of this post is to highlight the continued threat of Typhoon Parma to the northern Philippines. The current track forecast has it making landfall in the next day or so in the northern part of Luzon. The forecasts are still that it will stall as it makes its way across that area – this …
1 October 2009
Typhoon Parma
Super typhoon Parma is now forecast to be heading for the northern part of the Philippines: Even worse than that, it is currently forecast to move rather slowly as it crosses Luzon, and then to hang around for a while. Note that forecasts this far in advance are quite uncertain, but if the current forecast track is maintained then things will get very nasty in the northern Philippines, given how …
30 September 2009
Debris flow damage from Typhoon Morakot in Taiwan
In addition to visiting the Shiaolin landslide in Taiwan at the weekend, we also managed to visit a couple of other places that had suffered damage during typhoon Morakot. Damage from debris flows and river floods occurred extensively throughout the upland areas of southern Taiwan, as these images show: The government has set aside about US$5 billion for reconstruction. Unfortunately this area is threatened by another typhoon, called Parma:
25 September 2009
First images from a visit to the Shiaolin landslide
Today, with two colleagues, I have visited the site of the Shiaolin landslide in Taiwan, which killed about 500 people on 8th August. I will write a longer analysis soon (we are due to go back tomorrow), but for now I will just provide a before and after image. Before: After (the village was at the foot of the slope): And this is the aftermath of the flood caused by …
22 September 2009
After Morakot
A new blog, called After Morakot, has been started to highlight the impact of Typhoon Morakot in Taiwan. The most recent post describes a journey by the author into the village of Namsia, which was one of the most seriously affected villages in the typhoon. The images and the commentary are remarkable. I reproduce here two of the images, of the village of Mintsu – there are many more on …
19 September 2009
Special session on Typhoon Morakot in Taiwan
This afternoon at the Chi-Chi earthquake conference in Taiwan the organiser laid on a special session on the impact of Typhoon Morakot in August. This is of great interest to me, given the impact of the landslides, so I thought I’d give summary of the key points. Apologies for the note form – I have done this Twitter-style! 1. The magnitude of the typhoonFor Taiwan this was an extraordinary event. …
4 September 2009
The geological structure of the Hsiaolin slide
Thanks to reader Chingying Tsou, who has answered my request for information about the geological structure of the Hsiaolin landslide. He has provided a link to the website of the Sino-Geotechnics Research and Development Foundation, which provides the key information. The page is in Chinese, but the diagrams are really helpful, as is the Google translation. So here is a topographic map of the landslide site, with the major faults …
3 September 2009
The Hsiaolin landslide slope before failure
In an earlier post I highlighted a satellite image of the Hsiaolin landslide site. I have trimmed this a little below: This image is rather helpful as it starts to allow the site of the landslide before failure to be examined using Google Earth, which has good quality imagery of this area. This is, as close as I can get it, the same slope prior to failure: Click on the …
1 September 2009
A video of a river bank failure
The BBC News website has a short video showing the effects of heavy rainfall in Southern China in mid August. Most notable is a pretty remarkable piece of footage of buildings sliding down a river bank and into the torrents below. You can view it here.
31 August 2009
Eyewitness account of landslides triggered by Typhoon Morakot in Taiwan
Aerial image of Hsiaolin from CNR-IRPI I have today returned from my holiday, so normal service should be resumed. Interestingly, the number of readers of the blog appears to have increased in my absence. There is a lesson there I think! Anyway, I have a large backlog of things to post, but unfortunately also have a large backlog of other work as well, so it may take some time. Anyway, …
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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