An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Only one earthquake of intensity V on the Modified Mercalli Intensity Scale (MM) or greater has occurred within Wisconsin during historic times. Some shocks originating in Illinois, Michigan, Missouri, Ohio, and Canada have been felt.