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Old 2020-01-20, 22:48   #432
Dr Sardonicus
 
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Feb 2017
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Quote:
Originally Posted by Uncwilly View Post
4.5 magnitude near the Kansas Cosmosphere. That area is not used to having much of any earthquakes.
The following indicates it may be fracking-related (my emphasis): News Release, Kansas Geological Survey, Nov. 27, 2018
Quote:
LAWRENCE—After an upsurge in earthquakes was attributed to nearby underground disposal of wastewater during a south-central Kansas oil boom, wastewater injection was scaled back and the seismicity subsided. Then, unexpectedly, earthquake activity picked up farther afield.

New research by the Kansas Geological Survey at the University of Kansas explains how that happened and why, over time, wastewater disposal can cause earthquakes at a much greater distance from the point of injection than previously thought.
<snip>
The initial seismic upswing in Kansas started in 2013 within a few miles of the wastewater disposal wells, mainly in Barber, Harper, and Sumner counties. The unforeseen influx of earthquake activity farther north around Hutchinson started in 2017.
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