Earthquake Report

Magnitude: 0.5
Wed April 23, 2014 03:53:11 AM (PDT)
Event Id: 60746666
Version #2: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.5 Md
Time: Wed April 23, 2014 03:53:11 AM (PDT)
Wed April 23, 2014 10:53:11 (UTC)
Distance From: 41.9 km ( 26.0 mi) ESE ( 108. azimuth) from Longview, WA
56.1 km ( 34.9 mi) NNE ( 16. azimuth) from Portland, OR
60.9 km ( 37.8 mi) S ( 191. azimuth) from Morton, WA
Coordinates: 46.021, -122.426
Depth: 17.36 Km (10.59 miles)
Location Quality: Excellent
Event Id: 60746666
Horizontal Uncertainty: 0.46 Km
Depth Uncertainty: 0.65 Km
Azimuthal Gap: 123.0 deg
Number of Phases: 17
RMS Misfit: 0.1

Historic Activity

Focal Mechanism

More Information

Solution 1

Number of P First Motions: 10
Plane A Plane B Uncertainty
Strike 180º 84º 13.0º
Dip 85º 40º 5.0º
Rake -130º -8º 15.0º

Discrepant Stations

Station Network Channel Polarity Quality

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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