Recent Earthquakes in Central US
== PRELIMINARY EARTHQUAKE REPORT ==U.S. Geological Survey, National Earthquake Information Center
Version #Q: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:42:37 PM (CDT) on Saturday, April 12, 2008
.
The magnitude 2.5 event occurred 4 km (3 miles) NNE (31 degrees) of Grand Tower, IL .
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 2.5 - (unknown type) |
|---|---|
| Time | Saturday, April 12, 2008 at 4:42:37 PM (CDT)
Saturday, April 12, 2008 at 21:42:37 (UTC) |
| Distance from | Grand Tower, IL - 4 km (3 miles) NNE (31 degrees) Gorham, IL - 7 km (4 miles) S (171 degrees) Alto Pass, IL - 17 km (10 miles) NW (305 degrees) Saint Charles, MO - 153 km (95 miles) SE (145 degrees) |
| Coordinates | 37 deg. 39.4 min. N (37.657N), 89 deg. 28.4 min. W ( 89.474W) |
| Depth | 10 km (6.2 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst= 6, Nph= 6, Dmin=23.5 km, Rmss=1.37 sec, Erho=18.4 km, Erzz=0 km, Gp=147.6 degrees |
| Event ID# | us2008qtdc |
| Additional Information | map |
For more information, see http://wwwneic.cr.usgs.gov/