User:Funandtrvl/sandbox2
 | |
| UTC time | ?? |
|---|---|
| Magnitude | 4.2 Mw |
| Depth | 5 km (3.1 mi) |
| Epicenter | 41°26′35″N 88°55′37″W / 41.443°N 88.927°W |
| Areas affected |  United States |
| Tsunami | none |
| Casualties | none |
The 2004 LaSalle County, Illinois earthquake was a 4.2 magnitude earthquake that occurred on June 28, 2004 at 01:10:51 a.m. CDT (06:10:51 a.m. UTC) and affected Northern Illinois and five other Midwestern states.[1][2] Its epicenter was located 2 miles (3.2 km) south of Prairie Center, 8 miles (13 km) east of Troy Grove, and 8 miles (13 km) north-northeast of North Utica, Illinois. The quake's intensity was rated as category VI on the Modified Mercalli Intensity Scale, and could be felt as far away as Olive Branch, Mississippi, Fort Myers, Florida, and Palisades, New York.[3][4][5]
The quake occurred 5 kilometres (3.1 mi) beneath the surface in a structure associated with the Sandwich Fault Zone. It was not connected with the New Madrid Fault farther south, which has been linked to the Midwest's most serious earthquakes. The earthquake was felt in six different states, Illinois, Indiana, Iowa, Michigan, Missouri and Wisconsin.[2] No fatalities were reported, yet thousands of people were startled and awoken in the middle of the night. Three nearby nuclear power plants — LaSalle, Quad Cities, and Dresden — issued low-level alerts, but no damage was found.[3]
The earthquake was the first within the LaSalle County area since the 4.0 magnitude earthquake on September 15, 1972, near Amboy, Illinois, in neighboring Lee County, to the northwest. The last recorded earthquake within the county, prior to 2004, was on June 27, 1881, when a 4.6 magnitude quake hit near the city of LaSalle, Illinois.[6][7][8]
See also[edit]
References[edit]
- ^ Howlett, Debbie (28 June 2004). "Earthquakes jolt Midwest, Alaska". USA Today. Retrieved 3 March 2010.
- ^ a b "Magnitude 4.2 - ILLINOIS Summary". U.S Geological Survey. 1 February 2010. Retrieved 3 March 2010.
- ^ a b "Magnitude 4.2 - ILLINOIS Earthquake Details". United States Geological Survey. 1 February 2010. Retrieved 16 February 2010.
- ^ "M4.2 – Illinois Responses". U.S. Geological Survey. 27 October 2009. Retrieved 3 March 2010.
- ^ Kim, Won-Young. "June 28, 2004, Ottawa, Illinois Earthquake". Lamont–Doherty Earth Observatory of Columbia University. Retrieved 3 March 2010.
- ^ "Illinois Earthquake History". U.S. Geological Survey. 21 October 2009. Retrieved 3 March 2010.
- ^ Kopan, Tal (10 February 2010). "History of Earthquakes in Illinois". FOX Chicago News. Retrieved 3 March 2010.
- ^ Matile, Roger (1 July 2004). "Quake a shakin' experience for local residents". Ledger-Sentinel. Oswego, Illinois. Retrieved 3 March 2010.
External links[edit]
- USGS Earthquake Poster - Poster of the affected area, including historical data and Generalized Seismic Hazard