Tag: RIS

The world’s biggest hydropower project may be causing giant landslides in China

A massive landslide this week is only the latest natural disaster critics believe the Three Gorges Dam has caused—even officials admit there have been 70% more landslides and bank collapses in the dam’s reservoir area since it was built 12 years ago. Lily Kuo for Quartz reports.

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12 dams that changed the world

This spotlight on mega-dams of note, profiled by International Rivers’ Peter Bosshard for The Guardian, lists more banes than boons with a quest Jawaharlal Nehru, India’s first prime minister, famously described as the “disease of gigantism.”

Three Gorges Dam not affected by tremor

(March 28, 2014) Once again, an earthquake has hit the Three Gorges reservoir area and dam officials are reassuring the public that the world’s largest hydropower plant is operating normally. The epicenter of a 4.3-magnitude earthquake struck Zigui County, just 30 km from the Three Gorges Dam at 12:20 a.m. March 27, 2014. Stay tuned while Probe International investigates the cause and effect of this latest tremor.

China’s South-to-North Water Diversion project threatens flood of problems

(October 28, 2013) This excellent report by Agence France-Presse looks at the growing number of drawbacks posed by China’s South-to-North Water Diversion project and asks whether the $80-billion geo-engineering giant is creating more problems than it is supposed to solve. For example, the strong risk of collecting and distributing tainted water from the supply waterways it draws from, which would render the water carried unusable; the energy required to move water uphill for long sections; the displacement of entire communities in large numbers for reservoir construction, as well as the construction feats required to pull off certain aspects of the project’s plans – such as blasting channels through mountains in earthquake zones on the Tibetan plateau. Not to mention the threat posed by construction of this scale in seismically active zones.

Massive new dams remind China of human price of ‘tofu constructions’

(July 20, 2013) China is on the cusp of another dam-building binge. Nowhere is the aggressive dam push raising more eyebrows than in the country’s southwest. Last year, a report by the environmental group Probe International said of the 130 proposed dams on rivers in the region, nearly 50 per cent “are located in zones of high to very high seismic hazard.”

On alert: RIS risk amid rash of earthquakes in China’s Sichuan-Yunnan region

(March 22, 2013) A new report, exclusive to Probe International, calls for urgent monitoring of China’s large dams in areas prone to seismic hazard. These areas may be at increased risk from dam reservoir-induced seismicity (RIS). Scientists have observed that reservoir impoundment may not only increase the risk of strong earthquakes, particularly in areas already vulnerable to high-intensity seismic activity, but may represent a more pronounced risk in the first few years after a dam is filled.