The Presidential Daily Brief


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    Oklahoma Now as Risky as California for Quakes

    They’re on shaky ground. The U.S. Geological Survey has issued a new earthquake hazard map showing that parts of the Sooner State are as seismic as regions in California now that man-made earthquake risks have been included for the first time. In many central states like Oklahoma, the injection of wastewater from fracking is shaking things up. Last year the 3.9-million-strong state endured nearly 900 low-magnitude earthquakes, compared to just one in 2007, and scientists believe that managing injection rates could help reduce the risks.

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