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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. The New Madrid fault ...
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.
It was also possible that the rupture involved more than one fault. Inferred aftershock locations suggest compatibility with the latter model, and agrees with the intensity distribution which suggest a northeast-propagating rupture. All three models indicate the earthquake was a buried rupture event along a 5–20 km (3.1–12.4 mi) fault. [2]
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 ...
The southeast region of the state is part of a mid-continent fault zone known as the New Madrid Fault. It’s possible to see back in time. Light travels at 186,000 miles per second, extending ...
The other earthquakes that have been centered on this fault have been around the 2 to 3 range. ... Starnes said it's because that area is close to the New Madrid Seismic Zone. According to the ...
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 ...
New Madrid (/ ˈ m æ d r ɪ d / MAD-rid; Spanish: Nueva Madrid) is a city in New Madrid County, Missouri, United States. The population was 2,787 at the 2020 census . New Madrid is the county seat of New Madrid County. [ 4 ]