Earthquake Report

Magnitude: 0.8
Sat September 1, 2012 05:46:22 AM (PDT)
Event Id: 60460136
Version #5: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.8 Md
Time: Sat September 1, 2012 05:46:22 AM (PDT)
Sat September 1, 2012 12:46:22 (UTC)
Distance From: 17.2 km ( 10.7 mi) WSW ( 256. azimuth) from Enumclaw, WA
18.6 km ( 11.6 mi) ESE ( 115. azimuth) from Tacoma, WA
29.9 km ( 18.6 mi) SSW ( 205. azimuth) from Maple Valley, WA
Coordinates: 47.166, -122.209
Depth: 14.91 Km (9.1 miles)
Location Quality: Excellent
Event Id: 60460136
Horizontal Uncertainty: 0.37 Km
Depth Uncertainty: 1.21 Km
Azimuthal Gap: 69.0 deg
Number of Phases: 27
RMS Misfit: 0.2

Historic Activity


Focal Mechanism

More Information

Solution 1

Number of P First Motions: 14
Plane A Plane B Uncertainty
Strike 115º 334º 8.0º
Dip 45º 52º 15.0º
Rake 60º 117º 55.0º

Discrepant Stations

Station Network Channel Polarity Quality
D03D TA BHZ U 0.98

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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