Earthquake Report

Magnitude: 0.8
Sat August 11, 2012 06:58AM (PDT)
Event Id: 60438727
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.8 Md
Time: Sat August 11, 2012 06:58AM (PDT)
Sat August 11, 2012 13:58 (UTC)
Distance From: 35.2 km ( 21.9 mi) N ( 6. azimuth) from Portland, OR
43.0 km ( 26.7 mi) SE ( 138. azimuth) from Longview, WA
65.9 km ( 40.9 mi) N ( 8. azimuth) from Canby, OR
Coordinates: 45.849, -122.57
Depth: 21.82 Km (13.31 miles)
Location Quality: Good
Event Id: 60438727
Horizontal Uncertainty: 1.15 Km
Depth Uncertainty: 1.61 Km
Azimuthal Gap: 306.0 deg
Number of Phases: 15
RMS Misfit: 0.14

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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