Greenfield, WI has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 0.46% chance of a major earthquake within 50km of Greenfield, WI within the next 50 years.
View the probability of a major earthquake within the next 50 years in Greenfield, WI.
See Wisconsin Earthquake Report or Milwaukee County, WI Earthquake Report