(March 2011) The giant structure located in China has already caused more than 3,400 (so far minor) earthquakes. Scientists are now warning that a much bigger disaster could be looming on the horizon. A study by seismologists at the China Earthquake Administration (formerly known as the China Seismological Bureau) indicates that the massive Three Gorges dam on the Yangtze River “significantly increased” seismic activity along the dam’s reservoir.
Danger Pent Up Behind Aging Dams
(February 21, 2011) Aging dams have become a growing problem in the United States, and a potential threat to downstream populations. Besides the perils of elderly infrastructure, putting off repairs due to belt-tightening in a time of recession can aggravate lurking dangers from internal erosion, over-topping, and earthquakes.
An Inconvenient Truth: China Uses Global Warming to Justify Controversial Nu River Dams Project
(February 3, 2011) The Government of China is using international pressure to reduce carbon emissions as a pretense to build a series of controversial power stations on the pristine Nu River—a UNESCO World Heritage Site—despite opposition from environmentalists and human rights advocates.
Effect of the Zipingpu reservoir impoundment on the occurrence of the 2008 Wenchuan earthquake and local seismicity
(October 2010) The occurrence of the 2008 May 12 Wenchuan earthquake (M 7.9) near the eastern edge of the Tibetan Plateau triggered a debate whether it was influenced by the newly impounded Zipingpu reservoir, located only about 21 km east of the earthquake epicentre.
Dam safety and earthquake
(September 20 2010) IWP&DC presents a position paper of the International Commission on Large Dams (ICOLD), prepared by the Committee on Seismic Aspects of Dam Design.
Dam safety and earthquakes
(August 1, 2010) IWP&DC presents a position paper of the International Commission on Large Dams (ICOLD), prepared by the Committee on Seismic Aspects of Dam Design.
Evidence for surface loading as trigger mechanism of the 2008 Wenchuan earthquake
(July 14, 2010) Abstract: Two and a half years prior to China’s M7.9 Wenchuan earthquake of May 2008, at least 300 million metric tons of water accumulated with additional seasonal water level changes in the Minjiang River Valley at the eastern margin of the Longmen Shan. This article shows that static surface loading in the valley induced Coulomb failure stresses on the nearby Beichuan thrust fault system at <17km depth.
Landslides and seismic activity rock Three Gorges reservoir
(June 1, 2010) As the rainy season arrives and the Three Gorges reservoir is lowered, the controversial project is once again making headlines. This time, it’s because of the increasing number of landslides and seismic activity occurring along the 410-mile long reservoir.
The Zipingpu experiment: Dam engineers go back to the drawing boards
(April 20, 2010) Until the deadly Wenchuan earthquake in China in 2008, no large concrete face rockfill dam (CFRD) had ever been subject to a strong, ground shaking earthquake. But that changed on May 12, 2008 when the Zipingpu hydro dam, one of the largest CFRDs in China and sitting just 17 km from the earthquake epicenter, suffered higher than anticipated seismic forces, causing major damage to its concrete face and deflecting the giant structure 180 mm downstream. A leading scientist now says the earthquake should act as a wake up call for dam builders.
Prediction of reservoir-induced earthquake based on fuzzy theory
(April 4, 2010) Abstract—With more and more reservoirs have been and are being built all over the world, reservoir-induced earthquake has received a great deal of attention from geoscientists mainly because of its potential to damage constructions and to cause human losses. Based on the previous researches on the environmental conditions of reservoir-induced earthquake, a criteria hierarchy model has been constructed.
Zipingpu and the 2008 Sichuan earthquake: The debate continues
(April 1, 2010) More scientists are joining the debate over whether China’s Wenchuan May 2008 earthquake was triggered by the Zipingpu dam.
The Three Gorges reservoir has become a danger
(March 11, 2010) The large-scale construction that accompanied the building of the Three Gorges dam and its reservoir has increased the number of landslides—both new and reactivated—in the surrounding area. County seats recently built on land near the reservoir are now particularly prone to landslides. Local schools and residential buildings are already suffering cracked foundations and walls.
The relationship between large reservoirs and seismicity
(February 8, 2010) Following the 12 May 2008 Wenchuan earthquake in China, Chen Houqun, Xu Zeping and Li Ming discuss the question of whether large reservoirs can trigger strong earthquakes.
The relationship between large reservoirs and seismicity
(January 2010) Following the 12 May 2008 Wenchuan earthquake in China, Chen Houqun, Xu Zeping and Li Ming discuss the question of whether large reservoirs can trigger strong earthquakes.
The dam that shook the earth
(November 19, 2009) Peter Bosshard, policy director of International Rivers, provides a nice overview of the controversy surrounding the Zipingpu dam.
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