Earthquake Report

Magnitude: 0.4
Fri August 31, 2012 04:36:06 AM (PDT)
Event Id: 60459726
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.4 Md
Time: Fri August 31, 2012 04:36:06 AM (PDT)
Fri August 31, 2012 11:36:06 (UTC)
Distance From: 36.3 km ( 22.5 mi) ENE ( 66. azimuth) from Longview, WA
36.8 km ( 22.8 mi) SSW ( 210. azimuth) from Morton, WA
60.1 km ( 37.4 mi) SE ( 145. azimuth) from Centralia, WA
Coordinates: 46.271, -122.513
Depth: 21.82 Km (13.31 miles)
Location Quality: Good
Event Id: 60459726
Horizontal Uncertainty: 1.12 Km
Depth Uncertainty: 0.58 Km
Azimuthal Gap: 299.0 deg
Number of Phases: 14
RMS Misfit: 0.09

Historic Activity

60459726

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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