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Category Archives: Zipingpu
China earthquake points to future risk sites
(April 30, 2013) Nature magazine reports that, while scientists agree that China’s deadly tremor at Ya’an (Lushan county) may hint at where future quakes will strike, they disagree on which seismic fault the next rupture is likely to occur. Continue reading
Posted in China's Dams, Dams and Earthquakes, Earthquake, RIS, Three Gorges Probe, Zipingpu
Tagged Anninghe, China, China earthquake, Liu Qiyuan, Longmenshan, Lushan, Mian Liu, Nature, RIS, seismic risk, wenchuan, Ya'an
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Could dams be causing China’s earthquakes?
(April 24, 2013) Another article exploring the brewing debate over the cause or causes of the April 20 Lushan earthquake reports that the quake may have been an aftershock of Sichuan’s 2008 earthquake disaster, which some experts believe was triggered by the Zipingpu Dam reservoir. This issue of “reservoir-induced seismicity” is fast gaining attention as China, the most dammed nation in the world, is particularly at risk to the phenomenon. A 2011 Chinese study, for example, found China’s massive Three Gorges Dam had triggered around 3,000 earthquakes and numerous landslides in the reservoir region, representing a 30-fold increase in seismic activity in the area. Continue reading
Shifting tectonic plates, aftershock, dam-related, or all three?
(April 22, 2013) Experts are debating whether the 7.0-magnitude earthquake that struck Sichuan province over the weekend was an aftershock of the region’s deadly 2008 Wenchuan earthquake – both quakes occurred along the same fault line. Some attribute Saturday’s event to natural movement in the earth’s crust but according to Fan Xiao, chief engineer at the Sichuan Bureau of Geology and Mineral Resources, the Wenchuan quake is also linked to the nearby Zipingpu Dam reservoir. Speaking to the Global Times, Mr. Fan said large reservoirs built on fault lines can induce earthquakes caused by the pressure of massive water volume on a fracture. “A reservoir with a capacity of over 1 billion cubic meters and a dam more than 100 meters tall would have a 30 percent to 40 percent chance of inducing an earthquake,” he said. Continue reading
Sichuan earthquake may be aftershock of 2008 killer quake: Chinese geologist
(April 22, 2013) China’s construction of huge dams increases the probability of earthquakes, Fan Xiao warns. Continue reading
Posted in China's Dams, Dams and Earthquakes, Patricia Adams, RIS, Three Gorges Probe, Zipingpu
Tagged China earthquake, Lushan, wenchuan, Zipingpu
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Deadly earthquake in China may be aftershock of 2008 Wenchuan quake
(April 21, 2013) The strong earthquake that struck China’s mountainous Sichuan province Saturday morning may have been an aftershock, says prominent Chinese geologist, Fan Xiao. The accumulation of stress had not yet been fully released, making this region a more dangerous area after the May 2008 Wenchuan earthquake. Continue reading
