[DIPECHO Network] China Earthquake updates_ China quake lake now 'critical'

[Ripendra]

Dear all,
The water level at Tangjiashan Lake had risen to 738.81 meters by 5 p.m. on
Thursday, 0.9 meters higher than that of 5 p.m. Wednesday. It was still 1.19
meters below the drainage sluice
(*www.chinaview.cn*<http://www.chinaview.cn/index.htm>).
Probably, the lake will overtop in next few hours.  The predicted
overtopping is prolonged due to seepage flow (about 10m3/s) and rainfall
less than predicted. The failure may be more complicated due to

- large seepage discharge,

- potential landslide in the upstream of the lake,

- frequent aftershocks

- forecasted rainfall

- instability of the dam body

- lack of boulders/riprap in the channel bed



At this moment, we can just pray for the proper functioning of excavated
channel and hope there will be no casualties and just minimum loss.

Regards,
Riepndra Awal

On Fri, Jun 6, 2008 at 1:42 PM, Santosh Nepal <sanepal at icimod.org> wrote:

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> Dear disaster risk reduction practitioners,
>
> The Chinese authorities have informed that the lakes formed by the
> landslides after the May 12 earthquake are now at critical stage. A
> magnitude of 5.3 aftershock hit the Sichuan province on Thrusday. The China
> View reports that 166 aftershocks were monitored in southwest China's quake
> zone in the 24 hours ending Thursday noon, according to the China
> Earthquake
> Administration. A total of 10,418 aftershocks had been detected in the
> quake
> areas since May 12. The death toll has reached to 69,127 as of Thursday
> noon
> (June 5 2008).
>
> Also, BBC NEWS reports that the Nasa scientists have said they could be on
> the verge of a breakthrough in their efforts to forecast earthquakes.
> Researchers say they have found a close link between electrical
> disturbances
> on the edge of our atmosphere and impending quakes on the ground below.
>
> Please click on the links below for further details.
>
> China Quake Lake now 'Critical'
> Source: BBC News
> http://tinyurl.com/4yk326
>
> Plan for Quake 'Warning System'
> Source: BBC News
> http://tinyurl.com/3qu5x4
>
>
> With best regards
> Santosh Nepal
>
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