The Great Quake of 68

In 1968 there was an earthquake in the Central United States that shook the entire region. It happened November 9, 1968 and was felt in several states in the region.  In honor of the 45th anniversary of the event the USGS has put up a page on the earthquake where you can view information on it and contribute by putting in a felt report.  November 9, 1968 earthquake