Earthquake Report

Magnitude: 1.7
Thu August 9, 2012 04:19AM (PDT)
Event Id: 60451466
Version #6: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.7 Md
Time: Thu August 9, 2012 04:19AM (PDT)
Thu August 9, 2012 11:19 (UTC)
Distance From: 49.7 km ( 30.9 mi) WSW ( 239. azimuth) from The Dalles, OR
54.4 km ( 33.8 mi) WNW ( 293. azimuth) from Maupin, OR
72.7 km ( 45.2 mi) ESE ( 105. azimuth) from Portland, OR
Coordinates: 45.366, -121.72
Depth: 3.14 Km (1.92 miles)
Location Quality: Excellent
Event Id: 60451466
Horizontal Uncertainty: 0.37 Km
Depth Uncertainty: 0.37 Km
Azimuthal Gap: 112.0 deg
Number of Phases: 18
RMS Misfit: 0.22

Historic Activity

Historic_map_icon

Focal Mechanism

More Information

Solution 1

Uw60451466.uwfm1
Number of P First Motions: 12
Plane A Plane B Uncertainty
Strike 345º 177º 33.0º
Dip 30º 61º 15.0º
Rake 80º 96º 20.0º

Discrepant Stations

Station Network Channel Polarity Quality
TDL UW EHZ D 0.92

Solution 2

Uw60451466.uwfm2
Number of P First Motions: 12
Plane A Plane B Uncertainty
Strike 295º 205º 10.0º
Dip 65º 90º 25.0º
Rake -155º 20.0º

Discrepant Stations

Station Network Channel Polarity Quality
TDL UW EHZ D 0.92
60451466

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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