Category: Dams and Earthquakes

Did the Zipingpu Reservoir trigger the 2008 Wenchuan earthquake?

(October 28, 2009) A new study published in the journal of Geophysical Research Letters provides more evidence that the deadly Wenchuan earthquake may have been triggered by the Zipingpu dam’s reservoir.

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Reservoir-Triggered Seismicity in Armenian Large Dams

(Fall 2009) Reservoir-triggered seismicity (RTS) is a phenomenon, which has been observed in several large dam projects all over the world, especially for the reservoirs which are constructed in seismically active regions. Practically all the territory of the Republic of Armenia is characterized as the high seismic active area. A review of reservoir triggered seismicity in Armenia shows that it mainly occurs in large dams which are located near active faults. In this paper it has been shown that the number of microearthquakes increase after Tolors reservoir operation, cause changes of seismic regime in the observed regions.