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== PRELIMINARY EARTHQUAKE REPORT ==
University of Utah Seismograph Stations, Salt Lake City, Utah

Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.

A micro earthquake occurred at 8:10:50 PM (MDT) on Sunday, May 4, 2008.
The magnitude 0.3 event occurred 14 km (9 miles) NNE of West Yellowstone, MT.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 0.3 - duration magnitude (Md)
Time Sunday, May 4, 2008 at 8:10:50 PM (MDT)
Monday, May 5, 2008 at 2:10:50 (UTC)
Distance from West Yellowstone, MT - 14 km (9 miles) NNE (29 degrees)
Gardiner, MT - 38 km (24 miles) SW (219 degrees)
Island Park, ID - 39 km (24 miles) NE (40 degrees)
Big Sky, MT - 60 km (37 miles) SSE (158 degrees)
Salt Lake City, UT - 452 km (281 miles) N (9 degrees)
Coordinates 44 deg. 46.2 min. N (44.770N), 111 deg. 1.2 min. W (111.021W)
Depth 8.4 km (5.2 miles)
Location Quality Good
Location Quality Parameters Nst= 11, Nph= 11, Dmin=1.6 km, Rmss=0.12 sec, Erho=0.5 km, Erzz=1.1 km, Gp=147.6 degrees
Event ID# uu05050210
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For more information, see http://quake.utah.edu/

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