C. A. von Hake 1974 <p>Nebraska is in a region of moderate seismicity occasionally punctuated by rather strong earthquakes. Most of the State is seismic risk zone 1, with a small part in the southeast corner in risk zone 2. the first significant earthquake felt in Nebraska occurred in 1867, the year that statehood was achieved. the tremor occurred on <i>April 24, 1867,&nbsp;</i>and was apparently centered near Lawrence, Kansas. It affected an area estimated at 780,000 km² including much of Nebraska. Since 1867, at least seven earthquakes of intensity V or greater have originated within Nebraska's boundaries. Several strong earthquakes centered in neighboring States have also been felt over limited portions of Nebraska. None of these caused damage.&nbsp;</p> application/pdf en U.S Geological Survey Earthquake history of Nebraska article