Oklahoma officials swamped by surge in earthquakes near fracturing

OKLAHOMA CITY (Bloomberg) -- There have been more earthquakes strong enough to be felt in Oklahoma this year than in all of 2013, overwhelming state officials who are trying to determine if the temblors are linked to oil and natural gas production.The state on April 6 experienced its 109th earthquake of a magnitude 3 or higher, matching the total for all of 2013, according to Austin Holland, a research seismologist with the Oklahoma Geological Survey.

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