Earthquake Report

Magnitude: 0.2
Fri August 31, 2012 03:20PM (PDT)
Event Id: 60459956
Version #5: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.2 Md
Time: Fri August 31, 2012 03:20PM (PDT)
Fri August 31, 2012 22:20 (UTC)
Distance From: 44.6 km ( 27.7 mi) ESE ( 106. azimuth) from Longview, WA
57.8 km ( 35.9 mi) NNE ( 18. azimuth) from Portland, OR
59.6 km ( 37.0 mi) S ( 188. azimuth) from Morton, WA
Coordinates: 46.028, -122.385
Depth: 16.33 Km (9.96 miles)
Location Quality: Excellent
Event Id: 60459956
Horizontal Uncertainty: 0.78 Km
Depth Uncertainty: 1.19 Km
Azimuthal Gap: 252.0 deg
Number of Phases: 13
RMS Misfit: 0.11

Historic Activity


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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