On February 5th the Underground Injection Control National Technical Workgroup, part of the federal Environmental Protection Agency, released their final report on a potential link between wastewater injection wells (called Class II wells) and earthquakes. To which we say, we knew a probable connection existed three plus years ago. That’s the typical lag you get with when the federal government “investigates” something. The report is titled “Minimizing and Managing Potential Impacts of Injection-Induced Seismicity from Class II Disposal Wells: Practical Approaches” (the full 415-page copy is embedded below). The report says, in essence, while they can’t prove there’s connection between injection wells in some locations and earthquakes, the relationship is “undeniable.” MDN’s comment: What everyone acknowledges is that when you inject fluid into the earth over an active fault line, that fluid acts like grease and eventually the rock layers can, in RARE circumstances, slip and slide, causing a LOW LEVEL earthquake–typically so light no one feels it at the surface. The EPA study was based on cases from four states, two of them (OH & WV) in the Marcellus/Utica region…
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