Mystery intensifies: Scientists are puzzled by the recent seismic activity. It appeared the latest quake occurred on the Wilzetta fault, but researchers may never know for sure. Earthquakes that hit east of the Rocky Mountains are harder to pinpoint because the fault systems are not as well studied as major faults like the San Andreas in California. There are 181 injection wells in the Oklahoma county where most of the weekend earthquakes happened, said Matt Skinner, spokesman for the Oklahoma Corporation Commission, which oversees oil and gas production in the state and intrastate transportation pipelines.
But natural gas companies claim there is no proof of a connection between injection wells and earthquakes, and a study released earlier this year by an Oklahoma Geological Survey seismologist seems to back that up. It found most of the state's seismic activity didn't appear to be tied to the wells, although more investigation was needed. "It's a real mystery," seismologist Austin Holland of the Oklahoma Geological Survey said of the recent shaking."At this point, there's no reason to think that the earthquakes would be caused by anything other than natural" shifts in the Earth's crust, Holland said.
NY Daily News
They are everywhere and they are waking up.
They shook long before we drilled for oil and natural gas and they will shake long after we are gone.
Afterall the US government earlier this year just recently ran a massive multi state earthquake preparedness drill along the Mississippi river valley.
Maybe they know something we don't? If a big one hits the heartland, watch out. Massive damage and casualties to follow as their building codes are not up to par with those in places like the west coast.