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The New Madrid seismic zone has been the source of multiple major (M ~7.0–7.5) earthquakes in the past 2 ka, yet the surface expression of recent deformation remains ambiguous.
The Natural State has felt its fair share of earthquakes. In 1811-1812 a series of powerful earthquakes measuring over magnitude 7.5 rattled the residents of northeast Arkansas. Cabins collapsed, people were frightened, and the land surface was severely changed by liquefaction. These earthquakes happened in the New Madrid seismic zone (NMSZ ...
May 13, 2021 · The New Madrid fault line essentially follows the Mississippi River from Illinois to Arkansas. The last major adjustment of this seismic zone was way back in December 1811 and since science says this happens about every 200 years we’re WAY OVERDUE for another big adjustment and we have a lot of ground to cover.
Aug 14, 2020 · The historic 1811-1812 earthquakes of New Madrid, Missouri. The New Madrid fault system was responsible for the 1811–12 New Madrid earthquakes, an intense intraplate earthquake series that began with an initial earthquake of moment magnitude 7.5–7.9 on December 16, 1811, and was followed by a moment magnitude 7.4 aftershock on the same day.
Jul 11, 2019 · Here are factors to keep in mind about earthquakes in Tennessee: Buildings. Due to proximity to the New Madrid fault line, most structures in Memphis are retrofitted to withstand earthquakes, but ...
Feb 1, 2022 · When a 4.0 magnitude earthquake occurred Nov. 18 about 4 1/2 miles south of Williamsville in southeast Missouri, it was even lightly felt in Columbia. This was the most severe earthquake for the region since 1991 and was a wake-up call for those living in the New Madrid Seismic Zone, said Jeff Briggs, Missouri State Emergency Management Agency ...
Open full screen to view more. This map was created by a user. Learn how to create your own. This map shows the general area classified as the New Madrid Fault Zone.
