Earthquake Report

Magnitude: 0.5
Wed August 1, 2012 02:50PM (PDT)
Event Id: 60434137
Version #5: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 0.5 Md
Time: Wed August 1, 2012 02:50PM (PDT)
Wed August 1, 2012 21:50 (UTC)
Distance From: 3.4 km ( 2.1 mi) NW ( 305. azimuth) from Darrington, WA
31.0 km ( 19.2 mi) SSE ( 165. azimuth) from Concrete, WA
32.0 km ( 19.9 mi) NE ( 50. azimuth) from Granite Falls, WA
Coordinates: 48.271, -121.64
Depth: 13.74 Km (8.38 miles)
Location Quality: Excellent
Event Id: 60434137
Horizontal Uncertainty: 0.53 Km
Depth Uncertainty: 1.65 Km
Azimuthal Gap: 135.0 deg
Number of Phases: 9
RMS Misfit: 0.1

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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