Tag: Wenchuan earthquake

Chinese data hint at trigger for fatal quake

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Seismic activity started to rise just as two giant reservoirs on the upper Yangtze were being filled with water. Nature magazine reports on the latest findings by Chinese geologist Fan Xiao, published by Probe International, on the link between mega-dams and seismic activity in China’s southwestern region.

The landslide story

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(May 22, 2013) Chinese experts in landslide and geohazard protection fear debris flows, triggered by an epic 2008 earthquake in Sichuan Province, may pose a threat to the region for two decades. A tremendous amount of loose material from the landslides is suspended on hillslopes, ready to be washed away by rain. The potential for ongoing landslides and secondary hazards, such as flooding and blocked rivers, they argue, warrants further investigation.

Mega-dams in China’s earthquake zones could have “disastrous consequences”

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(October 31, 2012) “Earthquake Hazards and Large Dams in Western China,” the Probe International report authored by geologist John Jackson, has set China’s academic and industry circles astir. As the debate over Jackson’s findings heats up, the respected Caixin Media magazine, New Century Weekly, looks at both sides of the debate and the specific issues Jackson’s explosive report has raised.

Mapping disaster

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(September 14, 2012) This spring, Probe International used the power of hazard mapping to assess the risks of China’s breakneck dam-building along its western rivers. Now, a new study published by the international scientific journal Tectonophysics discusses how flawed hazard maps may have underestimated such risks and been partly to blame for the devastation caused by the 2011 Japan, 2010 Haiti and 2008 China earthquakes.

Drought? Earthquake? Blame the Three-Gorges Dam: World View

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(May 27, 2011) When China’s State Council announced there were “urgent problems” with the Three Gorges Dam, Chinese voices – both powerful and common – started to question its role in seemingly unrelated natural disasters, reports Bloomberg.com. In one both dramatic and comical example of a trend towards airing negative views, the popular, nationalist Global Times quoted dam expert, Zhang Boting, who offered this unreassuring gem: “After the construction of the project, there were thousands of minor earthquakes, which actually helped release built-up seismic energy in that area and reduced the possibility of big earthquakes happening in the future.”