At 2:15 a.m. on December 16, 1811, residents of the frontier town of New Madrid, in what is now ... the only way we can hope to understand intraplate earthquakes—and ultimately keep people ...

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 ...