earthquake
... that the 5.6 magnitude earthquake which struck the U.S. state of Oklahoma on November 5, 2011, was the most powerful recorded in state history?
... that the 5.6 <a href="./Moment_magnitude_scale" id="mwB0A" rel="mw:WikiLink" title="Moment magnitude scale">magnitude</a> <b id="mwB0E"><a href="./2011_Oklahoma_earthquake" id="mwB0I" rel="mw:WikiLink" title="2011 Oklahoma earthquake">earthquake</a></b> which struck the U.S. state of <a href="./Oklahoma" id="mwB0M" rel="mw:WikiLink" title="Oklahoma">Oklahoma</a> on November 5, 2011, was the most powerful recorded in state history?