The inclusion criteria for adding events are based on
WikiProject Earthquakes'
notability guideline that was developed for stand alone articles. The principles described are also applicable to lists. In summary, only damaging, injurious, or deadly events should be recorded.
Stover, Carl W.; Coffman, Jerry L. (1993).
"Illinois". Seismicity of the United States, 1568–1989 (revised). U.S. Geological Survey Professional Paper 1527. Washington, D.C.:
United States Government Printing Office.