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 5:54:59 PM (CDT) on Wednesday, April 23, 2008
.
The magnitude 1.8 event occurred 9 km (5 miles) SSW of New Madrid, MO .
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
|---|---|
| Time | Wednesday, April 23, 2008 at 5:54:59 PM (CDT)
Wednesday, April 23, 2008 at 22:54:59 (UTC) |
| Distance from | New Madrid, MO - 9 km (5 miles) SSW (212 degrees) Portageville, MO - 15 km (9 miles) NE (45 degrees) Tiptonville, TN - 19 km (12 miles) NNW (329 degrees) Jackson, TN - 122 km (76 miles) NW (326 degrees) |
| Coordinates | 36 deg. 31.2 min. N (36.520N), 89 deg. 34.8 min. W ( 89.580W) |
| Depth | 7.1 km (4.4 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst= 15, Nph= 24, Dmin=3.5 km, Rmss=0.4 sec, Erho=0.8 km, Erzz=1.5 km, Gp=122.4 degrees |
| Event ID# | nmhb0423c |
| Additional Information | map |
For more information, see http://folkworm.ceri.memphis.edu/