List of earthquakes in Illinois

The following is a list of earthquakes in Illinois.

Earthquakes[edit]

Date	Area	Epicenter	Mag.	MMI	Depth (km)	Injuries	Total damage / notes	Source
April 18, 2008	Wabash County	38°27′N 87°53′W / 38.45°N 87.89°W / 38.45; -87.89	5.4 M_w	VII	11.6	2	Limited / strike-slip (left lateral)
June 10, 1987	Richland County	38°42′47″N 87°57′14″W / 38.713°N 87.954°W / 38.713; -87.954	5.0 M_w	VI	10			^[1]
September 15, 1972	Lee County	41°38′42″N 89°22′08″W / 41.645°N 89.369°W / 41.645; -89.369	4.0 M_w	VI	6			^[2]
November 9, 1968	Hamilton County	37°57′N 88°29′W / 37.95°N 88.48°W / 37.95; -88.48	5.4 M_w	VII	25		Limited / dip-slip (reverse)
April 9, 1917	7 km (4.3 mi) S of Fults, Monroe County	38°06′N 90°12′W / 38.1°N 90.2°W / 38.1; -90.2	5.1 M_fa	VII			Damage at St. Louis	^[3]^[4]
May 26, 1909	3 km (1.9 mi) WNW of Lockport, Will County	41°36′N 88°06′W / 41.6°N 88.1°W / 41.6; -88.1	5.1 M_fa	VII			Damage at Aurora, Kane County	^[5]^[6]
October 31, 1895	Mississippi County, MO	37°00′N 89°24′W / 37.0°N 89.4°W / 37.0; -89.4	5.9 M_fa	VIII			Damage at Cairo	^[7]^[8]
September 27, 1891	Hamilton County	38°15′N 88°30′W / 38.25°N 88.5°W / 38.25; -88.5	5.2 M_fa	VII			Damage at Mount Vernon	^[5]^[9]
June 9, 1838	Marion County	38°30′N 89°00′W / 38.5°N 89.0°W / 38.5; -89.0	5.2 M_fa	VII				^[2]
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 & Coffman 1993, pp. 224, 228, 229
^ ^a ^b Stover & Coffman 1993, p. 224
^ Stover & Coffman 1993, pp. 224, 226, 227
^ "M 5.1 - 7 km S of Fults, Illinois". USGS. 9 April 1917. Retrieved 12 May 2024.
^ ^a ^b Stover & Coffman 1993, pp. 224–225
^ "M 5.1 - 3 km WNW of Lockport, Illinois". USGS. 26 May 1909. Retrieved 12 May 2024.
^ Stover & Coffman 1993, pp. 262, 263
^ "M 5.8 - Near Charleston, Missouri". 31 October 1895. Retrieved 12 May 2024.
^ Street, R. L. (1980). "The southern Illinois earthquake of September 27, 1891". Bulletin of the Seismological Society of America. 70 (3): 915–920. doi:10.1785/BSSA0700030915.

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.