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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.
New Madrid fault and earthquake-prone region considered at high risk today. 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.
Seismic Hazard Map of Michigan published in 2014. ... New Madrid Seismic Zone - Quaternary Fault Localities. Earthquakes with magnitudes equal to or larger than 2.5 are shown by the yellow dots.
Pressure on the fault where the 1811–1812 New Madrid earthquakes occurred was believed to be increasing, [23] but a later study by Eric Calais of Purdue University and other experts concluded the land adjacent to the New Madrid fault was moving less than 0.2 mm (0.0079 in) a year, increasing the span between expected earthquakes on the fault ...
A magnitude 5 earthquake may affect 5-15 times larger of an area in the New Madrid Seismic Zone compared to California, largely due to the crustal geology of the two areas.
Quakes in the New Madrid and Wabash Valley seismic zones over several decades. Southern Illinois sits upon the verging point of two major fault systems, the New Madrid seismic zone and the Wabash Valley seismic zone. In the 1970s after the 5.4 Richter magnitude scale 1968 Illinois earthquake, scientists realized that there was an unknown fault ...
This list of interesting facts is the perfect way to learn something new about life. ... The southeast region of the state is part of a mid-continent fault zone known as the New Madrid Fault.
The New Madrid Fault Zone is named for the city of New Madrid in the Bootheel. This fault zone is entirely hidden beneath the deep alluvial deposits of the Mississippi embayment. Unlike the San Andreas Fault in California, it is not visible anywhere. This fault zone was responsible for an extremely powerful series of earthquakes that rocked the ...