Logo 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 minor earthquake occurred at 0:39:07 AM (PDT) on Monday, April 28, 2008.
The magnitude 3.1 event occurred 11 km (7 miles) ESE of Maupin, OR.
The hypocentral depth is 20 km (13 miles).


Magnitude 3.1 - duration magnitude (Md)
Time Monday, April 28, 2008 at 0:39:07 AM (PDT)
Monday, April 28, 2008 at 7:39:07 (UTC)
Distance from Maupin, OR - 11 km (7 miles) ESE (116 degrees)
Shaniko, OR - 21 km (13 miles) NW (312 degrees)
Tygh Valley, OR - 21 km (13 miles) SE (128 degrees)
Portland, OR - 139 km (86 miles) ESE (108 degrees)
Coordinates 45 deg. 7.7 min. N (45.129N), 120 deg. 57.3 min. W (120.955W)
Depth 20.2 km (12.6 miles)
Location Quality Good
Location Quality Parameters Nst= 32, Nph= 34, Dmin=16 km, Rmss=0.28 sec, Erho=1.7 km, Erzz=0 km, Gp=75.6 degrees
Event ID# uw04280739
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/

[ Index map || big earthquake list || all earthquake list || glossary of terms || top page ]
[ Data Sources || Contacts ]