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Geotechnical Egineering News tagged with [polar vortex]

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Polar vortex reportedly causes ‘frost quakes’ in Chicago: What is the geological phenomenon?
Fox News   01 February 2019   USA   Chicago  
<p>Freezing temperatures in Chicago — which at one point Thursday were said to be lower than those in Alaska and Antarctica — have reportedly caused a loud, ground-shaking phenomenon to occur: so-called “frost quakes.”<br>Chicago residents reported hearing ...