The ways invasive species entered the lakes

The Great Lakes ecosystem has been severely damaged by more than 180 invasive and non-native species.
Species such as the zebra mussel, quagga mussel, round goby, sea lamprey, and alewife reproduce and spread, ultimately degrading habitat, out-competing native species, and short-circuiting food webs.

Earthquake fault lines. map above represent

There is lots of evidence