Earthquake Report

Magnitude: 2.3
Wed May 21, 1969 06:48PM (PDT)
Event Id: 10835363
Version #1: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 2.3 Md (Explosion)
Time: Wed May 21, 1969 06:48PM (PDT)
Thu May 22, 1969 01:48 (UTC)
Distance From: 44.5 km ( 27.7 mi) W ( 275. azimuth) from Pullman, WA
89.2 km ( 55.4 mi) NNE ( 30. azimuth) from Walla Walla, Wa
103.9 km ( 64.5 mi) SSW ( 194. azimuth) from Spokane, WA
Coordinates: 46.768, -117.755
Depth: 0.03 Km (0.02 miles)
Location Quality: Excellent
Event Id: 10835363
Horizontal Uncertainty: 0.64 Km
Depth Uncertainty: 0.46 Km
Azimuthal Gap: 329.0 deg
Number of Phases: 8
RMS Misfit: 0.37

Historic Activity

Historic_map_icon
10835363

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.