What is a meteotsunami? What happened when it hit shores of Lake Michigan?

Contrary to meteotsunamis, regular tsunamis are triggered by seismic activities and can get far larger and wreak havoc creating damage and devastation in a big way. Tsunami waves can exceed 100 feet, but meteotsunamis typically pack waves of roughly 6 feet or less. Meteotsunamis have hit the shores of Lake Michigan.