... sand blows and their feeder dikes, in the New Madrid seismic zone have led to the discovery of a previously unrecognized earthquake that occurred in A.D. 0 ± 200 yr . In addition, new findings support another New Madrid earthquake sequence in 1050 ± 250 yr B.C. The studies, which consisted...

... a naturalistic view could well (and I believe did) regard the earthquake sequence as most probably a unique event: like the Great Comet of 1811, worthy of study, but not portending anything important. Later delineation of seismic belts could only have strengthened this opinion, as it became clear that New Madrid...

...Conevery Bolton Valencius [email protected] © 2018 History of Earth Sciences Society 2018 History of Earth Sciences Society When I talk about The Lost History of the New Madrid Earthquakes to any public audience, I have to start by explaining that this is not a story about...

...Duncan Carr Agnew ABSTRACT It has recently been argued that the large mid-continental earthquakes near New Madrid, Missouri, were mostly forgotten soon after they occurred in 1811–1812, in large part because the records available (historical narratives) were qualitative and taken to be unreliable...

...Leonardo Ramirez‐Guzman; Robert W. Graves; Kim B. Olsen; Oliver S. Boyd; Chris Cramer; Stephen Hartzell; Sidao Ni; Paul Somerville; Robert A. Williams; Jinquan Zhong Abstract We performed a suite of numerical simulations based on the 1811–1812 New Madrid seismic zone ( NMSZ ) earthquakes, which...

... versions of this war story is the fact that the shallow, swampy terrain of the battle was created by liquefaction from the massive earthquakes. A steady influx of settlers to the region in the late nineteenth century further eroded the memory of the New Madrid earthquakes. As twentieth-century earthquake...

... attenuation and local soil conditions, magnitude should be the main influence on intensity values at large distances. We apply this concept by comparing the mean MMI at distances of 600–1200 km for each of the four largest New Madrid 1811–1812 earthquakes, the 1886 Charleston, South Carolina, earthquake...

... (500 B.C.-A.D. 400) cultural periods at the Burkett archaeological site in the northern part of the New Madrid seismic zone, where little information about prehistoric earthquakes has been available. Radiocarbon dating of organic material and analysis of artifacts are used to estimate the ages...

... degree of amplification, however. For example, an account from Ste. Genevieve ( Rozier, 1890 ), a settlement located about 50 miles closer to New Madrid than St. Louis, indicates that no structural damage occurred at that location. If the two sites were to have identical soil conditions, ground motion...

... Madrid, New Bourbon, and Herculaneum on 16 December 1811 were the result of events that occurred at daylight and shortly after sunrise. The editor of the St. Louis newspaper states that five earthquakes were felt in that settlement between 2:15 and 8 am on 16 December, but he does not specify which...

...Vladimir G. Kochkin; Jay H. Crandell © 2004 by the Seismological Society of America 2004 Accurate estimation of the magnitudes of the 1811-1812 earthquakes is an important step in the assessment of earthquake hazard in the New Madrid seismic zone (NMSZ). Expert opinion on the magnitudes...

...Chandan K. Saikia; P. G. Somerville Abstract We simulated broadband hard-rock ground-motion time histories for the Saint Louis, Missouri, metropolitan area due to three large earthquakes (6.5 ≦ M w ≦ 7.5), each occurring on the largest fault segment of the New Madrid fault zone at a distance...

...Steven G. Wesnousky; Lisa M. Leffler Abstract The great New Madrid earthquakes of 1811 and 1812 were accompanied by extensive liquefaction within the meizoseismal zone. We examined tens of kilometers of freshly excavated ditch banks within the southern limb of the New Madrid Seismic Zone...

...Eugene S. Schweig, III; Ronald T. Marple Abstract A remote sensing examination of the New Madrid seismic zone has revealed a feature, the Bootheel lineament, that may be the surface expression of one of the coseismic faults of the great New Madrid earthquakes of 1811 and 1812. The lineament extends...

...Haydar J. Al-Shukri; Brian J. Mitchell Abstract A three-dimensional inversion of P -wave travel-time residuals from local earthquakes reveals a remarkable pattern of low seismic velocities in crustal rocks immediately adjacent to the active portions of the New Madrid fault system. Seismic...

...Robert B. Herrmann; Shiang-Ho Cheng; Otto W. Nuttli abstract Recent studies of larger eastern North America earthquakes together with seismicity and focal mechanism studies in the New Madrid seismic zone permit estimates being made of static vertical displacements associated with the 1811 to 1812...

... the great New Madrid earthquakes of A.D. 1811 and 1812. This raises the possibility that prehistoric liquefaction features may have been misinterpreted during previous studies in the area. Nevertheless, a paleoearthquake chronology is beginning to emerge for the New Madrid seismic zone. Our findings...

...William Clifford Morse Copyright © 1941, by the Seismological Society of America References 1 Fuller M. J. The New Madrid Earthquake , U. S. Geol. Surv. Bull. 494 , 119 (1912) . NEW MADRID EARTHQUAKE CRATERS...

...Yong Li; Eugene S. Schweig; Martitia P. Tuttle; Michael A. Ellis Abstract We surveyed the area north of New Madrid, Missouri, for prehistoric liquefaction deposits and uncovered two new sites with evidence of pre-1811 earthquakes. At one site, located about 20 km northeast of New Madrid, Missouri...

.... Underground Waters of Tennessee and Kentucky, West of Tennessee River and of an Adjacent Area in Illinois , U. S. Geol. Surv., Water Supply Paper no. 164 , 50 . (1906) . 4 Fuller Myron L. The New Madrid Earthquake , U. S. Geol. Surv...