Earthquake Report

Magnitude: 0.8
Thu August 2, 2012 05:52:52 PM (PDT)
Event Id: 60434812
Version #6: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.8 Md
Time: Thu August 2, 2012 05:52:52 PM (PDT)
Fri August 3, 2012 00:52:52 (UTC)
Distance From: 22.2 km ( 13.8 mi) WNW ( 295. azimuth) from Tacoma, WA
27.8 km ( 17.3 mi) S ( 191. azimuth) from Bremerton, WA
33.9 km ( 21.1 mi) NNE ( 25. azimuth) from Olympia, WA
Coordinates: 47.321, -122.7
Depth: 21.84 Km (13.32 miles)
Location Quality: Excellent
Event Id: 60434812
Horizontal Uncertainty: 0.37 Km
Depth Uncertainty: 1.02 Km
Azimuthal Gap: 97.0 deg
Number of Phases: 31
RMS Misfit: 0.16

Historic Activity

Focal Mechanism

More Information

Solution 1

Number of P First Motions: 11
Plane A Plane B Uncertainty
Strike 131º 13.0º
Dip 30º 71º 13.0º
Rake -40º -114º 35.0º

Discrepant Stations

Station Network Channel Polarity Quality
B013 PB EHZ U 0.92

Map boundaries

 The red polygon is the reporting region for  this map; the black polygon is the authoritative region of the PNSN. Events inside the authoritative network are rendered as cirlces; events outside the authoritative region but inside the reporting region are rendered as squares. Explosions are always rendered as stars.  More

Cross Section

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