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 11:37:08 AM (CDT) on Monday, September 21, 2009
.
The magnitude 1.7 event occurred 4 km (2 miles) N (4 degrees) of Ringgold, GA .
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
|---|---|
| Time | Monday, September 21, 2009 at 11:37:08 AM (CDT)
Monday, September 21, 2009 at 16:37:08 (UTC) |
| Distance from | Ringgold, GA - 4 km (2 miles) N (4 degrees) Indian Springs, GA - 5 km (3 miles) E (99 degrees) East Brainerd, TN - 6 km (4 miles) SE (142 degrees) Chattanooga, TN - 21 km (13 miles) ESE (120 degrees) |
| Coordinates | 34 deg. 57.0 min. N (34.950N), 85 deg. 6.4 min. W ( 85.106W) |
| Depth | 9.9 km (6.2 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst= 8, Nph= 10, Dmin=22 km, Rmss=0.08 sec, Erho=2.1 km, Erzz=6.2 km, Gp=108 degrees |
| Event ID# | sehnw0921b |
| Additional Information | map |
For more information, see http://folkworm.ceri.memphis.edu/