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New Madrid seismic zone
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The New Madrid seismic zone, sometimes called the New Madrid fault line, is a major seismic zone and a prolific source of intraplate earthquakes in the Southern and Midwestern United States, stretchin
The Great Earthquake at New Madrid, a 19th-century woodcut from Devens' Our First Century (1877)
The Great Earthquake at New Madrid, a 19th-century woodcut from Devens' Our First Century (1877)
Crowley's Ridge
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Crowley's Ridge is a geological formation that rises 250 to 550 feet above the alluvial plain of the Mississippi embayment in a 150-mile line from southeastern Missouri to the Mississippi River near H
New Madrid seismic zone
…and a 25–40% chance of a magnitude 6 earthquake in the same time frame. In July 2014, the USGS increased the risk assessment for the New Madrid area. Crowley's Ridge – Geological formation in Arkansas and Missouri, U.S. Earthquake prediction – Branch of geophysics, primarily seismology…
Grave of Benjamin Crowley in Shiloh Cemetery at Crowley's Ridge State Park west of Paragould, Arkansas. The inscription reads "Benjamin Crowley - 1758
Grave of Benjamin Crowley in Shiloh Cemetery at Crowley's Ridge State Park west of Paragould, Arkansas. The inscription reads "Benjamin Crowley - 1758-1842 - The man for whom Crowley's Ridge is named"