Research has found links between hydrofracking and increased seismic activity. The United States Geological Survey said it's possible for humans to cause earthquakes through such activities. The USGS wrote in its "Earthquakes, Faults, Plate Tectonics, Earth Structure" FAQ that "Earthquakes induced by human activity have been documented in a few locations in the United States, Japan, and Canada. The cause was injection of fluids into deep wells for waste disposal and secondary recovery of oil, and the use of reservoirs for water supplies."
“It is well-established that fluid injection can induce small earthquakes,” the British Geological Survey noted in its report of the incident. “Typically, the earthquakes are too small to be felt, however, there are a number of examples of larger earthquakes occurring.”
There is no Marcellus Shale in central Virginia where Tuesday’s earthquake was centered.
If Marcellus drilling caused an earthquake hundreds of miles away, then “it also caused the Great Depression, the Black Plague, the October Revolution, and the break-up of the Beatles,” said Chris Tucker of Energy In Depth, an oil and gas industry group based in Washington, D.C.
does anyone know what they are injecting into the ground?
from what i understand (at least in CO) they refuse to provide a list of chemicals, claiming it is proprietary.