1811–1812 New Madrid earthquakes - Wikipedia
The 1811–1812 New Madrid earthquakes were a series of intense intraplate earthquakes beginning with an initial earthquake of moment magnitude 7.2–8.2 on December 16, 1811, followed by a moment magnitude 7.4 aftershock on the same day. Two additional earthquakes of similar magnitude followed in January and February 1812.
Summary of 1811-1812 New Madrid Earthquakes Sequence
This powerful earthquake was felt widely over the entire eastern United States. People were awakened by the shaking in New York City, Washington, D.C., and Charleston, South Carolina. Perceptible ground shaking was in the range of one to three minutes depending upon the observers location.
The Great Midwest Earthquake of 1811 | Smithsonian
At 2:15 a.m. on December 16, 1811, residents of the frontier town of New Madrid, in what is now Missouri, were jolted from their beds by a violent earthquake. The ground heaved and...
Computer Simulation of a Magnitude 7.7 Earthquake in the New Madrid …
This animation shows the simulated ground motion of the Earth’s surface that could occur in the central U.S. region for a magnitude 7.7 strike-slip earthquake on the southern section of the New Madrid seismic zone.
New Madrid seismic zone - Wikipedia
The New Madrid seismic zone (NMSZ), sometimes called the New Madrid fault line (or fault zone or fault system), is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri.
The New Madrid Seismic Zone | U.S. Geological Survey - USGS.gov
In the New Madrid region, the earthquakes dramatically affected the landscape. They caused bank failures along the Mississippi River, landslides along Chickasaw Bluffs in Kentucky and Tennessee, and uplift and subsidence of large tracts of land in the Mississippi River floodplain.
New Madrid earthquakes of 1811–12 - Encyclopedia Britannica
New Madrid earthquakes of 1811–12, series of three large earthquakes that occurred near New Madrid, Missouri, between December 1811 and February 1812. There were thousands of aftershocks, of which 1,874 were large enough to be felt …
New Simulations of 1811-1812 New Madrid Earthquakes Show …
Computer simulations of earthquake shaking, replicating the quakes that occurred in 1811-1812 in the New Madrid seismic zone (NMSZ), indicate that future large earthquakes there would produce major, prolonged ground shaking.
New Madrid Earthquakes of 1811–1812 - Missouri Encyclopedia
Between December 16, 1811, and February 7, 1812, seven earthquakes of magnitude 6.0 to 7.5 on the Richter scale and numerous lesser aftershocks ravaged the affected area. They were among the most intense earthquakes in US history and by far the largest to occur east of the Rocky Mountains.
How a Trio of Hellish Earthquakes Prompted America’s First …
Jul 10, 2019 · The earth had slipped somewhere deep beneath New Madrid, resulting in powerful earthquakes that killed many dozens of people, destroyed thousands of acres of virgin forest, and was felt across...