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The Water Cooler
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Felt that quake!
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<blockquote data-quote="Perplexed" data-source="post: 2574956" data-attributes="member: 7157"><p>Here's a story where they show the distribution of injection wells ("Class II Wells" in the diagram) as well as shale wells (where they extract oil and gas) in Oklahoma <a href="http://miningawareness.wordpress.com/2014/05/10/oil-gas-injection-wells-and-earthquakes-in-oklahoma-a-usgs-warning/" target="_blank">http://miningawareness.wordpress.com/2014/05/10/oil-gas-injection-wells-and-earthquakes-in-oklahoma-a-usgs-warning/</a></p><p></p><p>The diagram, about 2/3 of the way down the page, shows the presence of these injection wells mostly in the western half of the state, with the preponderance down the middle third of the state. I used Photoshop to superimpose the diagram onto the image of Oklahoma seismicity from 1970 to 2014, and the results are below.</p><p></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/i738.photobucket.com_albums_xx29_Perplexed0_Misc_Wells_Quakes_zpsd7b87ece.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Not a perfect correlation by any means, but the link between injection wells and increased seismicity is the most convincing one I've heard so far. If anyone has any better theories as to why we've seen many more quakes in Oklahoma these past couple of years as compared to the forty or so years prior to that, I'd love to hear them.</p></blockquote><p></p>
[QUOTE="Perplexed, post: 2574956, member: 7157"] Here's a story where they show the distribution of injection wells ("Class II Wells" in the diagram) as well as shale wells (where they extract oil and gas) in Oklahoma [url]http://miningawareness.wordpress.com/2014/05/10/oil-gas-injection-wells-and-earthquakes-in-oklahoma-a-usgs-warning/[/url] The diagram, about 2/3 of the way down the page, shows the presence of these injection wells mostly in the western half of the state, with the preponderance down the middle third of the state. I used Photoshop to superimpose the diagram onto the image of Oklahoma seismicity from 1970 to 2014, and the results are below. [img]https://www.okshooters.com/data/MetaMirrorCache/i738.photobucket.com_albums_xx29_Perplexed0_Misc_Wells_Quakes_zpsd7b87ece.jpg[/img] Not a perfect correlation by any means, but the link between injection wells and increased seismicity is the most convincing one I've heard so far. If anyone has any better theories as to why we've seen many more quakes in Oklahoma these past couple of years as compared to the forty or so years prior to that, I'd love to hear them. [/QUOTE]
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