Seismic activity is ongoing along the New Madrid fault line. In the 1990s, a few magnitude 4 earthquakes were reported, and there have been a few more larger than that, according to Pratt.

Seismic activity is ongoing along the New Madrid fault line. In the 1990s, a few magnitude 4 earthquakes were reported, and there have been a few more larger than that, according to Pratt.

A swarm of earthquakes — 7 total — shook along the New Madrid fault line. The seismic zone is known for tremors, though many are not felt.

A swarm of earthquakes — 7 total — shook along the New Madrid fault line. The seismic zone is known for tremors, though many are not felt.

NEW MADRID, Mo. (KFVS) - It has been an active week on the New Madrid fault line. There have been ten small earthquakes in the Bootheel this week alone, with magnitudes ranging from 1.8 to 3.0. At ...

A swarm of earthquakes rattled along the New Madrid fault line, sparking fear of the “big one” shaking the area known for tremors. Centered in New Madrid, Missouri, the seismic zone “is the ...

New Madrid Seismic Zone is the most active seismic area in the United States east of the Rocky Mountains. Getty Images/iStockphoto A swarm of earthquakes rattled along the New Madrid fault line ...

A swarm of earthquakes — 7 total — shook along the New Madrid fault line. The seismic zone is known for tremors, though many are not felt.

A swarm of earthquakes — 7 total — shook along the New Madrid fault line. The seismic zone is known for tremors, though many are not felt.

A swarm of earthquakes — 7 total — shook along the New Madrid fault line. The seismic zone is known for tremors, though many are not felt.