Recent Earthquakes in Central US
== PRELIMINARY EARTHQUAKE REPORT ==Cooperative New Madrid Seismic Network
Version #A: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 2:58:46 AM (CDT) on Monday, April 21, 2008
.
The magnitude 2.2 event occurred 8 km (5 miles) NNE (20 degrees) of Bellmont, IL .
The hypocentral depth is 17 km (11 miles).
| Magnitude | 2.2 - duration magnitude (Md) |
|---|---|
| Time | Monday, April 21, 2008 at 2:58:46 AM (CDT)
Monday, April 21, 2008 at 7:58:46 (UTC) |
| Distance from | Bellmont, IL - 8 km (5 miles) NNE (20 degrees) Bone Gap, IL - 10 km (6 miles) E (88 degrees) Keensburg, IL - 11 km (7 miles) N (355 degrees) Evansville, IN - 60 km (37 miles) NNW (332 degrees) |
| Coordinates | 38 deg. 27.0 min. N (38.450N), 87 deg. 52.8 min. W ( 87.880W) |
| Depth | 17.3 km (10.8 miles) |
| Quality | Good |
| Location Quality Parameters | Nst= 9, Nph= 15, Dmin=9 km, Rmss=0.22 sec, Erho=1.2 km, Erzz=1.4 km, Gp=86.4 degrees |
| Event ID# | nmhwb0421a |
| Additional Information | map |
For more information, see http://folkworm.ceri.memphis.edu/