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.
Summary of 1811-1812 New Madrid Earthquakes Sequence
Overview. A Sequence of Three Main Shocks in 1811-1812. 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 …
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 …
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,...
The Lost History of the New Madrid Earthquakes
More than nineteenth-century history is at stake in the answer to that question. Recent research on New Madrid area seismicity has demonstrated that the 1811–12 earthquakes were not simply an anomaly, but part of a continuing series of earthquakes that goes back several thousand years.
New Madrid Earthquakes of 1811-1812
Jul 26, 2024 · The New Madrid Earthquakes took place between December 1811 and April 1812 along an active fault line that extends roughly from Marked Tree (Poinsett County) in a northeasterly direction, crossing several states for about 150 miles.
1811-1812 New Madrid, Missouri Earthquakes | U.S. Geological …
Oct 2, 2019 · A series of earthquakes hit the New Madrid seismic zone of southeastern Missouri, northeastern Arkansas, and adjacent parts of Tennessee and Kentucky, in December 1811 to February 1812. Three earthquakes had a magnitude of 7.0 or greater.
New Madrid earthquakes of 1811–12 - Fault Lines, Seismic …
New Madrid earthquakes of 1811–12 - Fault Lines, Seismic Activity, Intensity: Over the past 4,500 years, a number of major earthquakes of magnitude 7.0 to 8.0 occurred in the NMSZ. These events include clusters of large earthquakes that have been dated to …
New Madrid Earthquakes of 1811–1812 | Missouri Encyclopedia
Between December 16, 1811, and February 7, 1812, seven earthquakes of magnitude 6.0 to 7.5 on the Richter scale and numerous lesser aftershocks ravaged the affected area. They were among the most intense earthquakes in US history and by far the largest to occur east of the Rocky Mountains.
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 fault system was responsible for the 1811–12 New Madrid ...