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> 200th Anniversary of the New Madrid Quakes
Sagebrusher
post Feb 2 2012, 12:02 AM
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Wow, four big quakes in the same area in 3 months! Can you imagine how much this would be hyped by the 2012 crackpots if it happened this year??? tongue.gif



The four earthquakes
December 16, 1811, 0815 UTC (2:15 a.m.); (M ~7.2 8.1[2]) epicenter in northeast Arkansas. It caused only slight damage to man-made structures, mainly because of the sparse population in the epicentral area. The future location of Memphis, Tennessee experienced level IX shaking on the Mercalli intensity scale. A seismic seiche propagated upriver, and Little Prairie (a village that was on the site of the former Fort San Fernando, near the site of present-day Caruthersville, Missouri) was heavily damaged by soil liquefaction.[3]
December 16, 1811, 1415 UTC (8:15 a.m.); (M ~7.28.1) epicenter in northeast Arkansas. This shock followed the first earthquake by six hours and was similar in intensity.[2]
January 23, 1812, 1500 UTC (9 a.m.); (M ~7.07.8[2]) epicenter in the Missouri Bootheel. The meizoseismal area was characterized by general ground warping, ejections, fissuring, severe landslides, and caving of stream banks. Johnson and Schweig attributed this earthquake to a rupture on the New Madrid North Fault. This may have placed strain on the Reelfoot Fault.[3]
February 7, 1812, 0945 UTC (4:45 a.m.); (M ~7.48.0[2]) epicenter near New Madrid, Missouri. New Madrid was destroyed. At St. Louis, Missouri, many houses were severely damaged, and their chimneys were toppled. This shock was definitively attributed to the Reelfoot Fault by Johnston and Schweig. Uplift along a segment of this reverse fault created temporary waterfalls on the Mississippi at Kentucky Bend, created waves that propagated upstream, and caused the formation of Reelfoot Lake by obstructing streams in what is now Lake County, Tennessee.[3]

http://en.wikipedia.org/wiki/New_Madrid_Earthquake
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mmi16
post Feb 2 2012, 05:16 AM
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QUOTE(Sagebrusher @ Feb 2 2012, 12:02 AM) *
Wow, four big quakes in the same area in 3 months! Can you imagine how much this would be hyped by the 2012 crackpots if it happened this year??? tongue.gif
The four earthquakes
December 16, 1811, 0815 UTC (2:15 a.m.); (M ~7.2 8.1[2]) epicenter in northeast Arkansas. It caused only slight damage to man-made structures, mainly because of the sparse population in the epicentral area. The future location of Memphis, Tennessee experienced level IX shaking on the Mercalli intensity scale. A seismic seiche propagated upriver, and Little Prairie (a village that was on the site of the former Fort San Fernando, near the site of present-day Caruthersville, Missouri) was heavily damaged by soil liquefaction.[3]
December 16, 1811, 1415 UTC (8:15 a.m.); (M ~7.28.1) epicenter in northeast Arkansas. This shock followed the first earthquake by six hours and was similar in intensity.[2]
January 23, 1812, 1500 UTC (9 a.m.); (M ~7.07.8[2]) epicenter in the Missouri Bootheel. The meizoseismal area was characterized by general ground warping, ejections, fissuring, severe landslides, and caving of stream banks. Johnson and Schweig attributed this earthquake to a rupture on the New Madrid North Fault. This may have placed strain on the Reelfoot Fault.[3]
February 7, 1812, 0945 UTC (4:45 a.m.); (M ~7.48.0[2]) epicenter near New Madrid, Missouri. New Madrid was destroyed. At St. Louis, Missouri, many houses were severely damaged, and their chimneys were toppled. This shock was definitively attributed to the Reelfoot Fault by Johnston and Schweig. Uplift along a segment of this reverse fault created temporary waterfalls on the Mississippi at Kentucky Bend, created waves that propagated upstream, and caused the formation of Reelfoot Lake by obstructing streams in what is now Lake County, Tennessee.[3]

http://en.wikipedia.org/wiki/New_Madrid_Earthquake

Can you imagine the damage such a series of quakes would do the 'improvements' man has built in this area in the past 200 years....


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Sagebrusher
post Feb 9 2012, 02:48 AM
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QUOTE(mmi16 @ Feb 2 2012, 06:16 AM) *
Can you imagine the damage such a series of quakes would do the 'improvements' man has built in this area in the past 200 years....


It's quite possible the casualty figures could exceed that of Japan's tsunami, there are still many un-reinforced multi-story buildings in Memphis, St. Louis and elsewhere in the Midwest.
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