Earthquake Report

Magnitude: 1.0
Fri September 21, 2012 01:28PM (PDT)
Event Id: 60454727
Version #4: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.0 Md (Probable explosion)
Time: Fri September 21, 2012 01:28PM (PDT)
Fri September 21, 2012 20:28 (UTC)
Distance From: 23.9 km ( 14.8 mi) N ( 10. azimuth) from Longview, WA
41.3 km ( 25.7 mi) S ( 172. azimuth) from Centralia, WA
52.4 km ( 32.6 mi) WSW ( 244. azimuth) from Morton, WA
Coordinates: 46.348, -122.888
Depth: 0.01 Km (0.01 miles)
Location Quality: Fair
Event Id: 60454727
Horizontal Uncertainty: 1.06 Km
Depth Uncertainty: 31.61 Km
Azimuthal Gap: 87.0 deg
Number of Phases: 12
RMS Misfit: 0.4

Historic Activity


Map boundaries

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Cross Section

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