Version #1: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 6:10:38 PM (PST) on Wednesday, November 4, 2009.
The magnitude 1.2 event occurred 15 km (9 miles) N of Richland, WA.
The hypocentral depth is 0.4 km (0.2 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
|---|---|
| Time | Wednesday, November 4, 2009 at 6:10:38 PM (PST) Thursday, November 5, 2009 at 2:10:38 (UTC) |
| Distance from | Richland, WA - 15 km (9 miles) N (3 degrees) West Richland, WA - 15 km (9 miles) NNE (25 degrees) West Pasco, WA - 19 km (12 miles) NNW (339 degrees) Spokane, WA - 199 km (123 miles) SW (226 degrees) |
| Coordinates | 46 deg. 24.8 min. N (46.413N), 119 deg. 16.3 min. W (119.271W) |
| Depth | 0.4 km (0.2 miles) |
| Location Quality | Good |
| Location Quality Parameters | Nst= 13, Nph= 13, Dmin=2 km, Rmss=0.13 sec, Erho=0 km, Erzz=0 km, Gp=118.8 degrees |
| Event ID# | uw11050210 |
| Additional Information | 2-degree map || Topo map centered at earthquake (This link takes you offsite). |
For more information, see http://www.ess.washington.edu/SEIS/PNSN/