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9 May 2010
The landslide at Attabad – new videos of the spillways and the drowning land upstream
Please click here for the most recent update on the Attabad landslide The lake behind the landslide at Attabad in Hunza, Pakistan continues to fill, meaning that we are probably only a fortnight or so away from the maximum point. I have not had an update from either NDMA or FOCUS for 48 hours, so am unsure as to how things have developed in the last two days. However, The …
8 May 2010
Inflow to the landslide lake at Attabad
The lake at Attabad continues to fill quite rapidly, with the water level now rising at close to 1 metre per day, as this graph using Focus data shows: The remaining freeboard is now 15.5 metres. At the current rate of increase, water will flow across the spillway on about 22nd May. However, Young and Hewitt (1990) provided a hydrograph of flow in the Hunza (apologies for the poor quality …
6 May 2010
Accelerating rate of filling at the Attabad landslide in Hunza, Pakistan
The rate of inflow at the Attabad landslide has now started to increase appreciably as warming and snowmelt really get underway. The graph below shows the daily rate of water increase, using data from the Focus measurements (the daily data are available on my monitoring website): The rate of increase for the last two days with data has been 89 cm per day. At that rate the water will overtop …
5 May 2010
The Attabad landslide: well, that’s me told then!
The Pamir Times is running an interesting story today that clearly puts me in my place! Here it is: “Hunza River lake would not burst, David Petley’s report is wrong”: Asad Zamin, DC GilgitPosted on May 5, 2010 by Pamir Times PT Report Gilgit, May 4: The report prepared by Dr. David Petley is wrong and the lake formed on Hunza River is not going to burst. Government experts have …
The Attabad landslide: well, that's me told then!
The Pamir Times is running an interesting story today that clearly puts me in my place! Here it is: “Hunza River lake would not burst, David Petley’s report is wrong”: Asad Zamin, DC GilgitPosted on May 5, 2010 by Pamir Times PT Report Gilgit, May 4: The report prepared by Dr. David Petley is wrong and the lake formed on Hunza River is not going to burst. Government experts have …
2 May 2010
New photograph of the spillway at Attabad
The Pamir Times today has some images of the spillway and dam at the landslide dam at Attabad, in Hunza, Pakistan. This picture shows the spillway itself: Constructing such a spillway has been a Herculean effort by all involved, who deserve considerable credit. However, the structure is narrower and smaller than is ideal, and the materials at the base in this section at least appear to be the clays. Once …
29 April 2010
Latest update on the Attabad landslide in Hunza
The lake level at the Attabad landslide continues to rise at about 55 cm per day, reflecting the increased level of inflow from snowmelt. NDMA and Focus now conduct joint surveys of the freeboard and have agreed a broadly common figure – currently about 23 m. At current rates this continues to indicate an overtopping date of early June (full details on the monitoring site): Seepage remains a concern, although …
18 April 2010
Worrying signs on the landslide at Attabad in Hunza
The water level at the landslide dam at Attabad in Pakistan continues to rise (see the data on my Hunza landslide monitoring site), with the reported freeboard being less than 30 metres. However, I have to report a very much more worrying development. Dr Michele Comi and Dr Chiara Calligaris from Ev-K2-CNR are just returning from a visit to the site, and have sent me the picture below (reproduced with …
16 April 2010
Latest update on the Hunza (Attabad) landslide in Pakistan
I have today updated my monitoring site for the Hunza (Attabad) landslide. However, there are a number of key developments that are worth noting: 1. The rate of seepage has started to increase once againThe graph of seepage against time shows that seepage is increasing rapidly at the moment, albeit at rates that are still only a fraction of the inflow rate: The key factor here is the development of …
6 April 2010
New images of the Attabad landslide
The Pamir Times has today run a pictorial article on the state of the Attabad landslide (NB see my new site for the latest monitoring data for the landslide). A few of the images are worth reproducing here. First, the third in the sequence of images showing the water level rise. The first was taken by me in late February, the second (on the upper row on the right) is …
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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