Earthquake Report

Magnitude: 2.6
Tue October 21, 1969 01:48:17 PM (PDT)
Event Id: 10835813
Version #1: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 2.6 Md (Probable explosion)
Time: Tue October 21, 1969 01:48:17 PM (PDT)
Tue October 21, 1969 20:48:17 (UTC)
Distance From: 57.5 km ( 35.7 mi) W ( 259. azimuth) from Spokane, WA
74.9 km ( 46.5 mi) ESE ( 123. azimuth) from Grand Coulee, WA
84.4 km ( 52.4 mi) E ( 93. azimuth) from Coulee City, WA
Coordinates: 47.573, -118.165
Depth: 7.7 Km (4.7 miles)
Location Quality: Poor
Event Id: 10835813
Horizontal Uncertainty: 5.353 Km
Depth Uncertainty: 1.91 Km
Azimuthal Gap: 332.0 deg
Number of Phases: 9
RMS Misfit: 0.26

Historic Activity


Map boundaries

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Cross Section

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