Earthquake Report

Magnitude: 2.4
Mon October 8, 2012 03:03:23 PM (PDT)
Event Id: 60474126
Version #4: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 2.4 Ml
Time: Mon October 8, 2012 03:03:23 PM (PDT)
Mon October 8, 2012 22:03:23 (UTC)
Distance From: 32.6 km ( 20.3 mi) S ( 178. azimuth) from Longview, WA
41.9 km ( 26.1 mi) NW ( 325. azimuth) from Portland, OR
60.5 km ( 37.6 mi) N ( 3. azimuth) from Newberg, OR
Coordinates: 45.844, -122.931
Depth: 20.75 Km (12.66 miles)
Location Quality: Excellent
Event Id: 60474126
Horizontal Uncertainty: 0.25 Km
Depth Uncertainty: 1.06 Km
Azimuthal Gap: 41.0 deg
Number of Phases: 54
RMS Misfit: 0.19

Historic Activity

Focal Mechanism

More Information

Solution 1

Number of P First Motions: 33
Plane A Plane B Uncertainty
Strike 185º 287º 25.0º
Dip 55º 74º 38.0º
Rake -20º -143º 20.0º

Discrepant Stations


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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