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 Council the Great Lakes Council local government area was significantly lower than the national average. The median weekly income for residents within the Great Lakes Council area was nearly half the national average. At the 2011 census, the proportion of residents in the Great Lakes Council local government area who stated their ancestry as Australian or Anglo-Saxon exceeded 82 per cent of all residents (national average was 65.2 per cent). In excess of 66% of all residents in the Great Lakes Council area nominated a religious affiliation with Christianity at the 2011 census, which was significantly higher than the national average