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 Bay Ferries Great Lakes Bay Ferries Great Lakes was a marketing name used by Bay Ferries Management Limited, a subsidiary of Northumberland Ferries Limited (NFL). In February 2005 Rochester Ferry Company LLC, a subsidiary of the City of Rochester, New York purchased the high speed catamaran ferry "Spirit of Ontario I" in a bankruptcy auction after previous owner Canadian American Transportation Systems (CATS) shut down the inaugural service in summer 2004 after it operated for 11 weeks. In April 2005, Rochester Ferry Company LLC selected NFL as the operator of the ferry service using "Spirit of Ontario I" between Rochester