Earthquake Report

Magnitude: 1.5
Wed September 5, 2012 05:16:54 AM (PDT)
Event Id: 60461431
Version #5: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.5 Md
Time: Wed September 5, 2012 05:16:54 AM (PDT)
Wed September 5, 2012 12:16:54 (UTC)
Distance From: 20.8 km ( 12.9 mi) NE ( 52. azimuth) from Friday Harbor, WA
25.3 km ( 15.7 mi) WSW ( 240. azimuth) from Bellingham, WA
41.5 km ( 25.8 mi) NW ( 308. azimuth) from Mount Vernon, WA
Coordinates: 48.65, -122.782
Depth: 16.96 Km (10.35 miles)
Location Quality: Excellent
Event Id: 60461431
Horizontal Uncertainty: 0.34 Km
Depth Uncertainty: 0.51 Km
Azimuthal Gap: 83.0 deg
Number of Phases: 21
RMS Misfit: 0.09

Historic Activity

Focal Mechanism

More Information

Solution 1

Number of P First Motions: 12
Plane A Plane B Uncertainty
Strike 40º 310º 8.0º
Dip 90º 70º 10.0º
Rake -160º 35.0º

Discrepant Stations


Solution 2

Number of P First Motions: 12
Plane A Plane B Uncertainty
Strike 145º 37º 13.0º
Dip 55º 66º 10.0º
Rake 30º 141º 20.0º

Discrepant Stations

Station Network Channel Polarity Quality
B006 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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