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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.
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.
December 16, 1811 1811–1812 New Madrid earthquakes Missouri: 7.6–7.9 December 16, 1811 1811–1812 New Madrid earthquakes Montana: 7.2 August 17, 1959 1959 Hebgen Lake earthquake Nebraska: 7.0 November 15, 1877 [49] Nevada: 7.3 December 16, 1954 1954 Fairview earthquake New Hampshire: 6.5 June 1, 1638 1638 New Hampshire earthquake New ...
An undated photo from the US Geological Survey depicts a landslide trench and ridge in the Chickasaw Bluffs, east of Reelfoot Lake, Tennessee, resulting from the 1811 to 1812 New Madrid earthquakes.
Massive earthquakes have rocked the New Madrid Seismic Zone, which includes Memphis. ... The USGS estimates that there’s a 7% to 10% chance the NMSZ would get a repeat of the 1811-12 earthquakes ...
Geologists estimate that similar New Madrid Seismic Zone earthquakes like the ones in 1811 and 1812 have a 7–10% chance of reoccurring within the next 50 years.
The New Madrid seismic zone located in the midcontinental United States is a region of concentrated ... In 1811–1812, a series of large earthquakes occurred on the ...
The comet was apparently visible during the New Madrid earthquakes in December 1811. A report on the first steamship to descend the Ohio River as it approached the confluence with the Mississippi River states, "December 18, 1811.—The anniversary of this day the people of Cairo [Illinois] and its vicinity should never forget. It was the coming ...