MEMPHIS, TENNESSEE — Two earthquakes have struck the New Madrid Seismic Zone within 48 hours, rattling communities across southern Illinois and southeastern Missouri and raising urgent questions from residents throughout the region.
A Magnitude 3.5 earthquake struck southern Illinois on Monday near the Paducah, Kentucky corridor. Less than 24 hours later, a Magnitude 2.9 earthquake hit southeastern Missouri, closer to the Jonesboro, Arkansas area. Both quakes occurred along the same fault system, which cuts diagonally through Missouri, Illinois, Kentucky, Tennessee, and Arkansas.
Major population centers, including Memphis, Jackson, and Paducah, all sit within or directly adjacent to this active fault corridor.
Officials are urging calm. Seismologists explain that small earthquakes in this zone are a regular part of ongoing natural seismic activity, not a warning sign that a larger event is about to happen. Current science does not allow precise earthquake prediction, and two small quakes in close succession do not confirm that a major one is coming.
However, the long-term risk is real. Geologists estimate there is roughly a 25 to 40 percent chance of a Magnitude 6.0 or greater earthquake striking somewhere within the New Madrid Seismic Zone over the next 50 years. Authorities are urging residents across Memphis, St. Louis, Little Rock, and surrounding communities to review their household emergency plans and know what to do when the ground shakes — not because a major quake is expected soon, but because preparedness saves lives when one eventually arrives.
The New Madrid Seismic Zone remains one of the most closely monitored fault systems in the entire country.
