0000002990 00000 n The initial earthquake was felt in parts of 16 states. Have any problems using the site? The little village of St. Genevieve, closer to the fault zone, had no damage at all. You always get stories about Rover going bananas right before an earthquake.
The Mw 5.2 earthquake was felt over an area that spanned Chicago and Atlanta, with about 40,000 reports submitted to the U.S. Geological Survey (USGS) “Did You Feel It?” system. 0000088826 00000 n
The 1968 magnitude 5.3 earthquake was the … Earthquakes in this part of the country are often felt at great distances. 0000073759 00000 n
1997). 0000047274 00000 n
0000004431 00000 n Clearly, the Wabash Valley Fault has gotten our deserved attention. This moderate strike-slip shock measured 5.2 on the moment magnitude scale and had a maximum Mercalli intensity of VII (Very strong).
"Wysession said that an earthquake in the Midwest will be felt ten times farther away than one occurring in the western United States because the crust beneath the Midwest is very old, stiff and cold. 0000026595 00000 n ScienceDaily, 25 April 2008. 0000145825 00000 n
102 year Anniversary of the Great 1906 Quake of San Francisco This is the anniversary of the Great 1906 San Francisco Rupture/Quake but it was also less than 3 hours from being exactly 102 years to the minute!
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0000003102 00000 n Or view hourly updated newsfeeds in your RSS reader:Keep up to date with the latest news from ScienceDaily via social networks:Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. (May 7, 2008)----- Original Message ----- From:
There was a lot of volcanic activity, a lot of seismic activity. A magnitude 8 is 30 times more energetic than a magnitude 7. Sometimes water well pressure changes, or there's a change in the magnetic field. The largest-magnitude earthquake in the past 20 years struck near Mt. The largest-magnitude earthquake in the past 20 years struck near Mt.
There were at least six felt aftershocks greater than magnitude 3 and 20 aftershocks with magnitudes greater than 2 located by regional and national seismic networks.
The epicenter of the earthquake was located about six miles northwest of Mt. It can be felt hundreds of miles away, even if it was a smaller earthquake. The Mw 5.2 earthquake was felt over an area that spanned Chicago and Atlanta, with about 40,000 reports submitted to the U.S. Geological Survey (USGS) “Did You Feel It?” system.
"St. Louis was here at the time, and all that happened was some chimneys fell in East St. Louis.
Portable instrumentation was deployed by researchers of the University of Memphis and Indiana University (the first portable station was installed at about 23:00 UTC on 18 April). The Mw 5.2 earthquake was felt over an area that spanned Chicago and Atlanta, with about 40,000 reports submitted to the U.S. Geological Survey (USGS) “Did You Feel It?” system. An official website of the United States governmentSeismological Research Letters 0000006128 00000 n April 18, 2008 Midwest Earthquake Calibration Run for August Temblor? Paleoliquefaction evidence suggests several major shaking events have occurred within the past 12,000 years (Munson et al. The rock is about 1.7 billion years old and the seismic waves can travel very long distances through this type of crust.
0000004697 00000 n Carmel in southeastern Illinois on Friday morning, 18 April 2008 at 09:36:59 UTC (04:37 CDT). 0000007090 00000 n 0000008919 00000 n 0000026709 00000 n The seismicity associated with the WVSZ is thought to occur in a complex horst and graben system of Precambrian igneous and metamorphic units at depths between 12 and 20 km. The crust got stretched and thinned. 0000011545 00000 n 0000007190 00000 n "These are changes we can measure with instruments, but we can't sense them as humans," he said.
"This whole region of New Madrid and the Wabash Valley seismic zone became a rift zone about 750 million years ago when the continent almost broke apart. "Earthquake In Illinois Could Portend An Emerging Threat."
0000014065 00000 n 0000022823 00000 n Carmel in southeastern Illinois on Friday morning, 18 April 2008 at 09:36:59 UTC (04:37 CDT). "There hasn't been a magnitude 6 earthquake on the New Madrid zone in more than 100 years, yet in 20 years there have been three magnitude 5 or better earthquakes on the Wabash Valley Fault," said Wyssession, associate professor of earth and planetary sciences. The Illinois Earthquake of April 18, 2008 and Aftershocks U.S. Geological Survey's felt and damage report maps. The three notable earthquakes that occurred at the end of 1811 and the beginning of 1812 were not magnitude 8s, rather magnitude 7s. April 18, 2008 5.2 Mount Carmel Earthquake Today's Quake is another warning for America!
By looking at seismometers, we can actually see many of these faults in the thinning of crusts underground. 0000002531 00000 n
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