Thursday, February 23, 2012

New Madrid Fault - New Madrid Seismic Zone - The Free Encyclopedia - Wikipedia

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Coordinates : 89 35 17 W / 36.58245 N 89.58801 W / 36.58245; -89.58801

TheNew Madrid Seismic Zone(pronounced nj New Madrid Fault Line, can be a important seismic zone and a abundant source of intraplate earthquakes (earthquakes within a southeast and also midwestern United States , extending into the southwest from New Madrid , Missouri .

The New Madrid fault system was in charge of your 1811 1812 New Madrid earthquakes and will develop the possible to offer substantial earthquakes from the future. Since 1812 frequent lesser earthquakes have been noted inside area.

Earthquakes which occur inside New Madrid Seismic Zone potentially jeopardize portions of seven American states: Illinois , Indiana , Missouri , Kentucky , Mississippi .

Geographic extent

The 150-mile (240 km) long fault system, that extends directly into five states, expands southward from Cairo , Illinois ; by means of Hayti , Caruthersville and New Madrid with Missouri ; through Blytheville in to Marked Tree in . It also covers an integral part of , around , giving out southeast towards .

Most from the seismicity can be found involving 3 along with 15 mile after mile (4.8 in addition to twenty-four km) under the particular Earth's surface.

Earthquake history

The area experienced four with the most important North American earthquakes in registered history, by using instant magnitudes predicted that they are while large as 8.0, most transpiring inside a three-month period of time in between December 1811 and February 1812. Many from the published financial records illustrate the cumulative side effects skin color earthquakes (known because the New Madrid Sequence); thus tips on finding the individual effects of each quake may be difficult. Magnitude estimations along with epicenters are usually based on interpretations connected with traditional company accounts and will vary.

Prehistoric earthquakes December 25, 1699 1811 1812 earthquake line Modern hobby Geology Potential with regard to future earthquakes Iben Browning's 1990 prediction Uncertainty around possibilities to get recurrence Other Midwestern earthquake areas See in addition References Notes

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Feldman, Jay (2005). When the actual Mississippi Ran Backwards : Empire, Intrigue, Murder, in addition to your New Madrid Earthquakes. Free Press. .

^ Historic Earthquakes New Madrid Earthquakes 1811 1812 USGS

^ . Johnston, A. C. & Schweig, E. S. Annual Review of Earth and Planetary Sciences, Volume 24, pp. 339 384. Available with SAO/NASA Astrophysics Data System (ADS)

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Geology29(2): 175 178. doi :10.1130/0091-7613(2001)0292.0.CO;2 .

Pollitz, Fred F.; Kellogg, Louise; B rgmann, Roland (December 2001). "Sinking Mafic Body in a very Reactivated Lower Crust: A Mechanism for Stress Concentration at the actual New Madrid Seismic Zone". Bulletin with the Seismological Society connected with America91(6): 1882 1897. doi :10.1785/0120000277 .

Liu, L.; Zoback, M. D. (1997). "Lithospheric muscle plus intraplate seismicity within that New Madrid seismic zone". Tectonics16(4): 585 595. Bibcode 1997Tecto..16..585L . doi :10.1029/97TC01467 .

Forte, A. M.; Mitrovica, J. X.; R. Moucha, N. A. Simmons, and S. P. Grand (2007). .

"Government alerts of 'catastrophic' U.S. quake"

"Impact connected with New Madrid Seismic Zone Earthquakes to the Central USA, Vol. one particular plus 2

Glenn Fowler (July 20, 1991). .

^ Spence, William J.; Herrmann, R. B.; Johnston, A. C.; Reagor, B. G. (1993). .

New Madrid negligence procedure could be shutting down physorg.com March 13, 2009

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" New Madrid Fault System May Be Shutting Down" Eureka! Science News

Monastersky, Richard. Nature (9 November 2011)

Science Daily . Retrieved 2009-11-04.

^ Wallace, Robert E. "Present-Day Crustal Movements as well as Mechanics of Cyclic Deformation". The San Andreas Fault System, California. . Retrieved 2007-10-26.

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Magnitude 5.4 ILLINOIS USGS.gov Retrieved January 21, 2009

Earthquake hits Indiana, experienced by means of hundreds throughout Michiana wndu.com April 18, 2008

Sources Further examining

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