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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.
Earthquakes in the New Madrid and Wabash Valley seismic zones from 1974 to 2002, with magnitudes larger than 2.5. The zone had four of the largest earthquakes in recorded North American history, with moment magnitudes estimated to be as large as 7 or greater, all occurring within a 3-month period between December 1811 and February 1812. Many of ...
December 16, 1811 1811–1812 New Madrid earthquakes Missouri: 7.6–7.9 December 16, 1811 1811–1812 New Madrid earthquakes Montana: 7.2 August 17, 1959 1959 Hebgen Lake earthquake Nebraska: 7.0 November 15, 1877 [49] Nevada: 7.3 December 16, 1954 1954 Fairview earthquake New Hampshire: 6.5 June 1, 1638 1638 New Hampshire earthquake New ...
The Missouri Bootheel is a salient (protrusion) ... An eyewitness of the earthquakes of 1811 and 1812 noted: Great fissures opened the earth, geysers show mud and ...
The New Madrid earthquakes of 1811 and 1812 were some of the largest earthquakes recorded in U.S. history, ... Missouri and Tennessee. At least three other large aftershocks, all with a magnitude ...
Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings — later followed by discoveries of Earth's tectonic plates, [1] seismotomography imaging technique, [2] observations using space satellites from outer space, [3] artificial intelligence (AI)-based ...
From Dec. 16, 1811, to Feb. 7, 1812, three major earthquakes violently shook part of the central United States. Trees bent and snapped. Trees bent and snapped. Sand blows erupted.
Frequent aftershock activities stemming from a trio of quakes that occurred near the Missouri-Kentucky border between 1811 and 1812, and a separate earthquake in Charleston, South Carolina, in ...