Fort Dearborn Earthquake

According to the USGS site (referencing Earthquake Information Bulletin, Volume 4, Number 3, May-June 1972) a 4.4M Intensity VI earthquake occurred at Fort Dearborn on August 20, 1804 at 20:10 ( 42.0N 87.8W). "The earthquake was felt at the south end of Lake Michigan and at Fort Wayne, Ind. (about 320 km from the epicenter)." Per Wikipedia, Fort …

Continue reading Fort Dearborn Earthquake