WISCONSIN (CBS 58) - A minor earthquake was recorded Wednesday afternoon in Lake Michigan near the Wisconsin-Illinois border.

According to the United States Geological Survey, the magnitude 2.9 earthquake struck at 2:38 p.m. about 20 kilometers east-northeast of Kenilworth, Illinois, roughly 15 miles from the Wisconsin shoreline.

While earthquakes are uncommon in the Midwest, they are not unheard of.

The largest known earthquake associated with Wisconsin occurred on May 6, 1947, near Milwaukee and Lake Michigan. The USGS says the quake was felt across much of southeastern Wisconsin, from Sheboygan to the Illinois border and west toward Waukesha. It rattled buildings and windows, caused minor damage and prompted some Milwaukee residents to believe an explosion had occurred. No injuries were reported.

A later USGS analysis estimated the 1947 earthquake had a magnitude of about 3.8.

The USGS also notes Wisconsin's official earthquake catalog contains only three recorded in-state earthquakes below magnitude 2, and that some reported seismic events in the region have actually been explosions or cryoseisms, also known as frost quakes.