Earthquake Report

Magnitude: 1.1
Thu October 25, 2012 12:30PM (PDT)
Event Id: 60480786
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.1 Md (Probable explosion)
Time: Thu October 25, 2012 12:30PM (PDT)
Thu October 25, 2012 19:30 (UTC)
Distance From: 31.7 km ( 19.7 mi) S ( 170. azimuth) from Longview, WA
40.6 km ( 25.2 mi) NNW ( 332. azimuth) from Portland, OR
62.4 km ( 38.7 mi) N ( 7. azimuth) from Newberg, OR
Coordinates: 45.856, -122.869
Depth: 0.01 Km (0.01 miles)
Location Quality: Fair
Event Id: 60480786
Horizontal Uncertainty: 1.56 Km
Depth Uncertainty: 31.61 Km
Azimuthal Gap: 262.0 deg
Number of Phases: 20
RMS Misfit: 0.31

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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