Shake, rattle and roll
by Hawkins Teague
Apr 23, 2008 | 0 0 comments | 0 0 recommendations | email to a friend | print
Trigg County residents were among the millions across the Midwestern United States that woke to a 5.2 magnitude earthquake last Friday before dawn.

According to the United States Geological Survey’s website, usgs.gov, the earthquake is “a reminder that seismic events do occur in areas not normally thought of as ‘earthquake country,’” and “is also a lesson that earthquakes east of the Mississippi River are felt more widely than those in the west.” The earthquake occurred at 4:37 a.m. Central Daylight Time, and was centered about 38 miles north-northwest of Evansville, Ind. or 128 miles east of St. Louis. It occurred in an area known as the Wabash Valley Seismic Zone, and was the strongest earthquake in southern Illinois since November 1968, when a 5.4 magnitude earthquake occurred.

Angel Gutierrez, a USGS geophysicist, told The Cadiz Record on the phone Monday morning that since the initial earthquake, there have been 24 aftershocks. The strongest of these was a 4.6 magnitude, which occurred at 10:15 the same morning. The second strongest was a 4.0 magnitude, followed by a 3.4.

“Most of them were 1 or 2, and most people don’t feel those,” Gutierrez said.

Gutierrez said that it was hard to say for sure, but that it was possible that aftershocks could occur for several weeks. He said the initial quake is estimated to have lasted about 12 seconds. It was felt as far west as Kansas, as far north as Upper Michigan and as far south as Atlanta.

For the rest of this story, read this week's Cadiz Record.
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