WebThe 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. WebMost of these faults are considered inactive. However, faults associated with the New Madrid seismic zone are active, and deeply buried beneath many layers of unconsolidated sediment and sedimentary rock, making them almost impossible to …

An Iowa Perspective on Earthquakes – IGS

Web15 de mar. de 2011 · The last big quake to hit the New Madrid fault was a series of four in 1811 and 1812. Those are estimated to have been between 7.0 and 8.0 in magnitude and made the Mississippi flow backwards. The zone had four of the largest earthquakes in recorded North American history, with moment magnitudes estimated to be as large as 7.0 or greater, all occurring within a 3-month period between December 1811 and February 1812. Many of the published accounts describe the cumulative effects of all the … Ver mais The New Madrid Seismic Zone , sometimes called the New Madrid Fault Line, is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern Ver mais The faults responsible for the NMSZ are embedded in a subsurface geological feature known as the Reelfoot Rift, which likely formed during the Cambrian Period. The Reelfoot Rift was first described by Ervin and McGinnis (1975) and believed to be of late Ver mais • Boyd, K.F. (1995). Geomorphic evidence of deformation in the northern part of the New Madrid seismic zone [U.S. Geological Survey Professional … Ver mais The 150-mile (240 km)-long seismic zone, which extends into five states, stretches southward from Cairo, Illinois; through Hayti, Caruthersville, and New Madrid in Missouri; through Blytheville into Marked Tree in Arkansas. It also covers a part of West Tennessee, … Ver mais • Crowley's Ridge – unusual geological formation in Southeast Missouri and Northeast Arkansas • Earthquake prediction – Branch of seismology Ver mais • Central US Earthquake Consortium • Earthquake Hazard in the New Madrid Seismic Zone Remains a Concern – United States Geological Survey • USGS New Madrid Ver mais orchestra of lights gemmy

Facts about the New Madrid Seismic Zone Missouri …

http://usaebn.org/ComReady/index.php/earthquake-report/11-the-new-madrid-be-ready-be-prepared WebThe last time this happened Bells rang in Boston Massachusetts. The first of three magnitutde 8 quakes totally destroyed the town of New Madrid and there were only 400 … http://usaebn.org/ComReady/index.php/earthquake-report/11-the-new-madrid-be-ready-be-prepared ipv4 local loopback address