Recent Earthquakes in Pacific Northwest
== PRELIMINARY EARTHQUAKE REPORT ==University of Washington, Dept. of Earth and Space Sciences
Version #1: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A micro earthquake occurred at 2:41:12 AM (PST) on Saturday, November 7, 2009.
The magnitude 1.1 event occurred 0 km (0 miles) SSW of Mount St. Helens Volcano, WA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
|---|---|
| Time | Saturday, November 7, 2009 at 2:41:12 AM (PST) Saturday, November 7, 2009 at 10:41:12 (UTC) |
| Distance from | Mount St. Helens Volcano, WA - 0 km (0 miles) SSW (202 degrees) Amboy, WA - 39 km (24 miles) NE (34 degrees) Yacolt, WA - 41 km (25 miles) NNE (25 degrees) Vancouver, WA - 71 km (44 miles) NNE (27 degrees) |
| Coordinates | 46 deg. 11.8 min. N (46.197N), 122 deg. 10.9 min. W (122.182W) |
| Depth | 2.8 km (1.7 miles) |
| Location Quality | Excellent |
| Location Quality Parameters | Nst= 23, Nph= 28, Dmin=0 km, Rmss=0.14 sec, Erho=0.3 km, Erzz=0 km, Gp=57.6 degrees |
| Event ID# | uw11071041 |
| 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/