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.
Computer Simulation of a Magnitude 7.7 Earthquake in the New Madrid …
The solid straight line in the middle of the New Madrid seismic zone is the surface projection of the modeled fault, which ruptures in the simulation. The colors are keyed to the peak intensity of ground velocity at the surface.
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
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.
Earthquake, Kentucky Geological Survey, University of Kentucky
For a map of these hazards, see Geologic Hazards in Kentucky (23Mb). Although there has not been a major earthquake affecting Kentucky for nearly 200 years, a repeat of the 1811-12 New Madrid earthquakes could cause significant property damage and loss of life.
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 pitched,...
Earthquake Hazards near the New Madrid Fault Zone
Expected shaking intensity of a magnitude 7.5 earthquake on the New Madrid central fault. Greens to yellows indicate moderate to strong shaking; oranges to reds indicate severe to extreme shaking and moderate to heavy damage. Credit: US Geological Survey. Human and Economic Risks
KGS Research Examines New Madrid Fault Seismic Zone
The Kentucky Geological Survey recommends mitigation measures appropriate for the actual risk, such as proper design and construction of buildings and infrastructure, to prevent disaster in case of a major New Madrid quake.
Study: New Madrid fault zone alive and active | AP News
Jan 24, 2014 · LOS ANGELES (AP) — The New Madrid fault zone in the nation’s midsection is active and could spawn future large earthquakes, scientists reported Thursday. It’s “not dead yet,” said U.S. Geological Survey seismologist Susan Hough, who was part of the study published online by the journal Science.