Earthquake Report

Magnitude: 0.8
Thu August 23, 2012 04:04AM (PDT)
Event Id: 60456831
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.8 Md
Time: Thu August 23, 2012 04:04AM (PDT)
Thu August 23, 2012 11:04 (UTC)
Distance From: 16.6 km ( 10.3 mi) WSW ( 256. azimuth) from Enumclaw, WA
19.0 km ( 11.8 mi) ESE ( 113. azimuth) from Tacoma, WA
29.3 km ( 18.2 mi) SSW ( 204. azimuth) from Maple Valley, WA
Coordinates: 47.17, -122.201
Depth: 16.2 Km (9.88 miles)
Location Quality: Excellent
Event Id: 60456831
Horizontal Uncertainty: 0.33 Km
Depth Uncertainty: 1.03 Km
Azimuthal Gap: 67.0 deg
Number of Phases: 37
RMS Misfit: 0.21

Historic Activity

Historic_map_icon

Focal Mechanism

More Information

Solution 1

Uw60456831.uwfm1
Number of P First Motions: 19
Plane A Plane B Uncertainty
Strike 125º 35º 10.0º
Dip 55º 90º 53.0º
Rake -145º 45.0º

Discrepant Stations

Station Network Channel Polarity Quality
PANH CC BHZ D 0.92
GMW UW EHZ D 0.98
60456831

Station

Code, or name, to designate a particular seismic station