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
Great Lakes Christian High School Great Lakes Christian High School Great Lakes Christian High School is a private Christian high school in Beamsville, Ontario affiliated with the Churches of Christ. Great Lakes Christian High School began operation in 1952 on the former estate of S.T. Creet, who had purchased the property from the estate of Senator William Gibson in 1918]. Mr. Creet was a businessman in Ontario's Niagara Peninsula with connections from Lewiston, New York to Toronto. He and a friend, Mr. Williams, and built the Deer Park Golf Club in Grimsby, and he was also a member of the Toronto Board of Trade. He