Skip to main content
U.S. flag

An official website of the United States government

Map New Madrid Seismic Zone

Detailed Description

This map shows earthquakes (circles) of the New Madrid and Wabash Valley seismic zones (orange patches). Red circles indicate earthquakes that occurred from 1974 to 2002 with magnitudes larger than 2.5 located using modern instruments (University of Memphis). Green circles denote earthquakes that occurred prior to 1974 (USGS Professional Paper 1527). Larger earthquakes are represented by larger circles.

Sources/Usage

Public Domain.

Was this page helpful?