Recent Earthquakes in Central US
== PRELIMINARY EARTHQUAKE REPORT ==Southeast U.S. Seismic Networks
Version #A: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:45:04 PM (CDT) on Thursday, October 1, 2009
.
The magnitude 1.8 event occurred 11 km (7 miles) NNE (15 degrees) of Decatur, TN .
The hypocentral depth is 20 km (12 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
|---|---|
| Time | Thursday, October 1, 2009 at 7:45:04 PM (CDT)
Friday, October 2, 2009 at 0:45:04 (UTC) |
| Distance from | Decatur, TN - 11 km (7 miles) NNE (15 degrees) Spring City, TN - 13 km (8 miles) SE (134 degrees) Niota, TN - 22 km (14 miles) WNW (299 degrees) Chattanooga, TN - 80 km (50 miles) NE (38 degrees) |
| Coordinates | 35 deg. 36.6 min. N (35.611N), 84 deg. 45.6 min. W ( 84.760W) |
| Depth | 19.7 km (12.2 miles) |
| Quality | Good |
| Location Quality Parameters | Nst= 12, Nph= 20, Dmin=22 km, Rmss=0.07 sec, Erho=0.5 km, Erzz=1.4 km, Gp=82.8 degrees |
| Event ID# | sehnw1002a |
| Additional Information | map |
For more information, see http://folkworm.ceri.memphis.edu/