An <a href="https://en.wikipedia.org/wiki/1947_Centralia_mine_disaster" id="mw9Q" rel="mw:WikiLink" title="1947 Centralia mine disaster">explosion in a coal mine</a> in <a href="https://en.wikipedia.org/wiki/Centralia,_Illinois" id="mw9g" rel="mw:WikiLink" title="Centralia, Illinois">Centralia, Illinois</a> kills 111.