Earthquake Report

Magnitude: 1.1
Thu September 20, 2012 05:57PM (PDT)
Event Id: 60454332
Version #2: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.1 Md
Time: Thu September 20, 2012 05:57PM (PDT)
Fri September 21, 2012 00:57 (UTC)
Distance From: 8.2 km ( 5.1 mi) NNE ( 19. azimuth) from Maple Valley, WA
13.1 km ( 8.2 mi) SW ( 222. azimuth) from Fall City, WA
16.7 km ( 10.4 mi) W ( 263. azimuth) from North Bend, WA
Coordinates: 47.48, -122.006
Depth: 15.03 Km (9.17 miles)
Location Quality: Excellent
Event Id: 60454332
Horizontal Uncertainty: 0.26 Km
Depth Uncertainty: 0.58 Km
Azimuthal Gap: 43.0 deg
Number of Phases: 28
RMS Misfit: 0.14

Historic Activity

Historic_map_icon

Focal Mechanism

More Information

Solution 1

Uw60454332.uwfm1
Number of P First Motions: 17
Plane A Plane B Uncertainty
Strike 60º 295º 23.0º
Dip 35º 68º 25.0º
Rake 40º 118º 35.0º

Discrepant Stations

Station Network Channel Polarity Quality
B941 PB EHZ U 0.92
MBW UW EHZ U 0.92
60454332