Earthquake Report

Magnitude: 0.5
Sat July 28, 2012 02:25:59 AM (PDT)
Event Id: 60431917
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.5 Md
Time: Sat July 28, 2012 02:25:59 AM (PDT)
Sat July 28, 2012 09:25:59 (UTC)
Distance From: 14.0 km ( 8.7 mi) S ( 173. azimuth) from Morton, WA
48.3 km ( 30.0 mi) S ( 179. azimuth) from Eatonville, WA
62.4 km ( 38.8 mi) ENE ( 58. azimuth) from Longview, WA
Coordinates: 46.434, -122.253
Depth: 12.34 Km (7.53 miles)
Location Quality: Excellent
Event Id: 60431917
Horizontal Uncertainty: 0.47 Km
Depth Uncertainty: 1.24 Km
Azimuthal Gap: 121.0 deg
Number of Phases: 22
RMS Misfit: 0.17

Historic Activity


Focal Mechanism

More Information

Solution 1

Number of P First Motions: 11
Plane A Plane B Uncertainty
Strike 80º 350º 10.0º
Dip 75º 90º 53.0º
Rake -165º 40.0º

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

 Create a custom cross-section or depth-time plot. Click on "Custom Plot" to start.