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Oklahoma coming to terms with unprecedented surge in earthquakes
Oklahoma coming to terms with unprecedented surge in earthquakes

When Austin Holland was being considered for his job as the sole seismologist at the Oklahoma Geological Survey in 2009, his interviewer posed a wry question: "Are you going to be able to entertain yourself as a seismologist in Oklahoma?" Back then, the state had a 30-year average of only two earthquakes of magnitude 3.0 or higher per year. As it turns out, though, boredom has been the least of Holland's concerns. Over the last five years, the state has had thousands of earthquakes — an unprecedented increase that has made it the second-most seismically active state in the continental United States, behind California. The state had 109 temblors measuring 3.0 or...

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