Magnitude 5.6 earthquake rocks the Great Plains

CHICAGO -- An earthquake has rattled a swath of the Great Plains from Nebraska to North Texas. The United States Geological Survey said that a 5.6 magnitude earthquake happened at 7:02 a.m. Saturday in north-central Oklahoma. It also tweeted that aftershocks may occur. People in Kansas City, Missouri; Fayetteville, Arkansas; and Norman, Oklahoma, all reported...