Earthquake Report

Magnitude: 0.5
Thu July 31, 2014 09:08PM (PDT)
Event Id: 60067223
Version #4: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.5 Md
Time: Thu July 31, 2014 09:08PM (PDT)
Fri August 1, 2014 04:08 (UTC)
Distance From: 34.3 km ( 21.3 mi) ESE ( 123. azimuth) from Longview, WA
48.6 km ( 30.2 mi) N ( 5. azimuth) from Portland, OR
69.1 km ( 42.9 mi) SSW ( 199. azimuth) from Morton, WA
Coordinates: 45.971, -122.568
Depth: 22.27 Km (13.58 miles)
Location Quality: Good
Event Id: 60067223
Horizontal Uncertainty: 1.08 Km
Depth Uncertainty: 0.81 Km
Azimuthal Gap: 275.0 deg
Number of Phases: 15
RMS Misfit: 0.12

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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