Iowa’s southern counties are on alert as the New Madrid Seismic Zone, known for massive earthquakes, looms nearby, ...

The New Madrid Fault zone is a significant seismic threat located in the central United States, stretching across parts of Missouri, Arkansas, Tennessee, Kentucky, and Illinois. Unlike the well ...

The New Madrid has produced much larger quakes, most notably in 1811 and 1812 in New Madrid, Mo., when a series of three quakes struck, ranging in estimated magnitudes of 7.2-8.0.

New Madrid, Missouri, was terrorized by its fault line in the early 19th century, and earthquakes are still the region's claim to fame. But these days, earthquake insurance is prohibitively expensive.

It's been over 100 years since New Madrid's last major ... sensitive equipment throughout the fault area, ... next 50 years is as high as 40% and could cause up to $300 billion in damage. ...

Tennessee is in two seismic zones: the East Tennessee zone and the New Madrid zone. There were 177 earthquakes in Tennessee in 2024, according to USGS data . Ten of those were 2.5 magnitude or higher.