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, Missouri - Wikipedia
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]
New Madrid Seismic Zone - Encyclopedia Britannica
New Madrid Seismic Zone (NMSZ), region of poorly understood, deep-seated faults in Earth’s crust that zigzag southwest-northeast through Arkansas, Missouri, Tennessee, and Kentucky, U.S. Lying in the central area of the North American Plate, the seismic zone is about 45 miles (70 km) wide and about.
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.
Facts about the New Madrid Seismic Zone - Missouri
While not as well known for earthquakes as California or Alaska, the New Madrid Seismic Zone (NMSZ), located in southeastern Missouri, northeastern Arkansas, western Tennessee, western Kentucky and southern Illinois, is the most active seismic area in the United States, east of the Rocky Mountains.
Summary of 1811-1812 New Madrid Earthquakes Sequence
This sequence of three very large earthquakes is usually referred to as the New Madrid earthquakes, after the Missouri town that was the largest settlement on the Mississippi River between St. Louis, Missouri and Natchez, Mississippi.
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.
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 Madrid | Earthquake Zone, Fault Line, Seismic Activity
New Madrid, city, seat (1821) of New Madrid county, southeastern Missouri, U.S., on the Mississippi River, 35 miles (56 km) southwest of Cairo, Ill. It originated as a French Canadian trading post about 1783.