== PRELIMINARY EARTHQUAKE REPORT ==
University of Washington, Dept. of Earth and Space Sciences
Version #0: This report supersedes any earlier reports of this event.
This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 6:20:58 AM (PST) on Wednesday, March 4, 2009.
The magnitude 2.4 event occurred 25 km (16 miles) ESE of Morton, WA.
The hypocentral depth is 48 km (30 miles).
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Magnitude |
2.4 - duration magnitude (Md) |
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Time |
Wednesday, March 4, 2009 at 6:20:58 AM (PST)
Wednesday, March 4, 2009 at 14:20:58 (UTC)
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Distance from |
Morton, WA - 25 km (16 miles) ESE (121 degrees)
Mount St. Helens Volcano, WA - 30 km (19 miles) NNE (28 degrees)
Ashford, WA - 35 km (22 miles) S (177 degrees)
Tacoma, WA - 96 km (60 miles) SSE (158 degrees)
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Coordinates |
46 deg. 26.4 min. N (46.439N), 121 deg. 59.8 min. W (121.997W) |
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Depth |
48.2 km (30.0 miles) |
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Location Quality |
Fair |
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Location Quality Parameters |
Nst= 12, Nph= 12, Dmin=19 km, Rmss=0.3 sec, Erho=0 km, Erzz=0 km, Gp=158.4 degrees
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Event ID# |
uw03041420 |
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Additional Information |
map
Topo map centered at earthquake (This link takes you offsite).
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For more information, see http://www.ess.washington.edu/SEIS/PNSN/
|| Contacts
Back to map
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