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水力压裂会引起地震吗?

The国家研究委员会最近发现,“目前为页岩气开采实施的水力压裂井工艺不会对诱发有感地震事件造成高风险。”斯坦福大学地球物理学家马克·佐巴克(Mark Zoback)在2012年的证词中回应了这些评论U.S. Senate Committee on Energy and Natural Resources, stating that fracturing will “affect a very small volume of rock and release, on average, about the same amount of energy as a gallon of milk falling off a kitchen counter.”

You might not know it from some media reports, but seismic events actually are associated with what’s known as wastewater injection (disposal). These wells receive wastewater from a variety of industrial processes. While injection wells have been linked to seismic activity, according to theU.S. Geological Survey(USGS) the occurrence is rare: “Although the disposal process has the potential to trigger earthquakes, not every wastewater disposal well produces earthquakes. In fact, very few of the more than 30,000 wells designed for this purpose appear to cause earthquakes.” Senior USGS geophysicist Bill Ellsworth added that when disposal wells are linked with seismic activity, “it’s been fixed by either shutting down the offending well or reducing the volume that’s being produced. So there are really straight-forward fixes to the problem when earthquakes begin to occur.”