Great Lakes tectonic zone southern Ontario. Several earthquakes have been documented in Minnesota in the last 120 years, with at least six in the GLTZ. The epicenters show a clear relationship to tectonic features of the state; four epicenters lie along the Great Lakes tectonic zone. Depths are estimated at . The best-documented event occurred on July 9, 1975, near Morris, Minnesota, with a magnitude of 4.6, and a felt area of covering parts of four states. Wisconsin has had no earthquakes along the GLTZ, Michigan's Upper Peninsula has had four earthquakes in the vicinity of the GLTZ – Negaunee, Newberry and two in
Bay Ferries Great Lakes and Toronto, Ontario. NFL had established Great Lakes Ferries Limited on March 31 but the name was subsequently changed only days later to Bay Ferries Management Limited on April 13. The company was registered in the State of New York (Monroe County) on June 29 of that year . The company began using the name Bay Ferries Great Lakes, borrowing from the name of NFL's other high speed ferry subsidiary Bay Ferries Limited, to refer to its contracted operation on Lake Ontario on behalf of the Rochester Ferry Company LLC. Bay Ferries Great Lakes announced that the service using "Spirit