1.  Douglas Luken  Geo361: Hydrology 3 Gorges Dam, China Just Another Dam Argument

2. Induced : Triggered : In this presentation we will assume they are one in the same. Is the significant change in load stress and/or pore pressure, causing a substantial change in the crust Is the significant change in load stress and/or pore pressure, causing a substantial change in the crust If the crust is previously close to a fault failure due to natural processes, and only required a minor change in load or pore pressure If the crust is previously close to a fault failure due to natural processes, and only required a minor change in load or pore pressure Many state there is a difference between “Triggered” and “Induced”

3. “…earthquakes occurring in the vicinity of artificial water reservoirs as a consequence of impounding.” (Gupta, Harsh K., 2002.)

6. Monthly variation in reservoir water depth and seismic activity as recorded by an analogue station near the dam wall

8. Completed in 1935 Completed in 1963 Main Body Completed 2006 100’s of Earthquakes occurred as the water rose to its peak height of 475ft in 1939 M ≥6.3 Earthquake in 1967 7661ft long 1045km² surface area

9. DamCountryDam Height (m)Impounding Began Largest EQ Magnitude ZipingpuChina 154 200420087.9 KoyaIndia 103 196219676.3 KaribaZambia 128 195819636.2 KremastaGreece 160 196519666.2 XinfengjiangChina 105 195919626.1 SrinakharinThailand 140 197719835.9 MarathonGreece 67 192919385.7 OrovilleUSA 236 196719755.7 AswanEygpt 111 196419815.6 BenmoreNew Zealand 110 196419665 EucumbeneAustralia 116 195719595 HooverUSA 221 193519395 BamjinaYugoslavia 90 196619674.5-5.0 BhastaIndia 88 198119834.9 KerrUSA 60 195819714.9 KurobeJapan 186 196019614.9 MonteyardFrance 155 196219634.9 ShenwoChina 50 197219744.8 AkosomboGhana 134 1964 4.7 CanellesSpain 150 196019624.7 Reported Cases of RIS with M ≥ 4.0 *Source T.Valdut, Enviromental Aspects of Reservoir Induced Seismicity, May 1993

12. There is resistance in the engineering community globally to accept the significant or even existence of RIS.