2. Great Lakes Tectonic Zone
Length: 1,200 miles
Great Lakes tectonic zone (GLTZ) stretches 1,400 miles Minnesota to Ontario, Canada. At least six earthquakes in Minnesota in the last 120 years have been caused by Great Lakes tectonic zone.
Length: 1,200 miles
Great Lakes tectonic zone (GLTZ) stretches 1,400 miles Minnesota to Ontario, Canada. At least six earthquakes in Minnesota in the last 120 years have been caused by Great Lakes tectonic zone.