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 …
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...
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 …
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 1811-1812
Jul 26, 2024 · On Monday, December 16, 1811, the earth began to shake. Geologists say the epicenter of the huge earthquake was about three miles beneath present-day Blytheville (Mississippi County), though the earthquake was named for New Madrid, Missouri, the only town in the area with a sizeable population.
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.
The Lost History of the New Madrid Earthquakes
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.
Scientific overview and historical context of the 1811-1812 new Madrid ...
The central and eastern United States has experienced only 5 historic earthquakes with Mw 7.0, four during the New Madrid sequence of 1811-1812: three principal mainshocks and the so-called «dawn aftershock» following the first mainshock.
Earthquakes of 1811-1812 | New Madrid, MO - Official Website
1812, February 7, 09:45 UTC, New Madrid, Missouri Magnitude ~7.4 - 8.0. This is the fourth earthquake of the 1811-1812 series. Several destructive shocks occurred on February 7, the last of which equaled or surpassed the magnitude of any …
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