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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.
Locations of quakes magnitude 2.5 or greater in the Wabash Valley (upper right) and New Madrid (lower left) Seismic Zones. The Wabash Valley seismic zone (also known as the Wabash Valley fault system or fault zone) is a tectonic region located in the Midwestern United States, centered on the valley of the lower Wabash River, along the state line between southeastern Illinois and southwestern ...
The most famous fault in the U.S. is San Andreas.Of course, the seismic overreactions of the film industry certainly help put its name in the minds of the disaster-conscious, but it’s infamy was ...
Map showing the amount of advance warning time that might be available from ShakeAlert for several plausible future earthquake scenarios. [1]Initially the system has been developed to monitor and alert the West Coast of the United States, an area with significant seismic risk due to the San Andreas fault zone and the Cascadia subduction zone.
A simulation of a plausible major southern San Andreas fault earthquake — a magnitude 7.8 that begins near the Mexican border along the fault plane and unzips all the way to L.A. County's ...
The 800-mile San Andreas Fault is one of the largest fault lines in the world. A meeting of the North American and Pacific tectonic plates, this transform fault (where two tectonic plates move ...
Early studies indicated the earthquake was on the Newport-Inglewood fault, but a later study in 2002 indicated the San Andreas fault was the cause. Other faults have been suggested, but the San Andreas fault is considered the most likely fault. Around 40 people died, and the magnitude ranged from 6.9-7.5. [32]
In 2016, as an earthquake swarm topped out with a magnitude 4.3 quake in a different part of the region — directly beneath the Salton Sea, just south of where the mighty San Andreas fault ends ...