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I'm seeing a lot of folks making a connection between hydraulic fracturing in the US and this earthquake. In fact, the earthquakes in Oklahoma were caused by waste water wells: https://en.m.wikipedia.org/wiki/Injection_well

Fracking is happening all over the US (Appalachians, the Dakotas, Texas), but for some reason Oklahoma only gets the quakes. I think it's because only Oklahoma has these bad wastewater wells. Apologies, can't find the sources I found a few years ago that convinced me of this.




Statistics for increase in rate of earthquakes in US: https://en.m.wikipedia.org/wiki/File:Cumulative_induced_seis...

The keyword is induced seismicity. I hadn't heard of that before.


Yes, waste water is the larger cause of these induced quakes. However, fracking produces a significant amount of wast water, so they indirectly contribute to induced quakes in that way as well.




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