⏰ when
When did the 1811–1812 New Madrid earthquakes happen?
Quick Answer
The major New Madrid earthquakes struck between December 1811 and February 1812. They were among the strongest earthquakes ever recorded in the central United States.
The Full Story
The New Madrid earthquake sequence occurred from December 1811 to February 1812 in the Mississippi River valley. Three very large earthquakes and many aftershocks shook the region, causing the ground to crack, liquefy, and even make parts of the Mississippi River appear to flow backward. Estimates suggest magnitudes near 7 or above. The sequence remains a major U.S. intraplate earthquake case study.
Key Facts
1.December 1811 to February 1812
2.Major earthquakes in the central United States
3.Caused liquefaction and river disturbances
YouTube Angle
Suggested video title for this topic:
"The central U.S. had some of its strongest earthquakes ever in 1811–1812."
Was this answer helpful?
Tap a reaction — it helps us pick what to cover next.