Earthquake Report

Magnitude: 1.6
Thu September 6, 2012 09:57AM (PDT)
Event Id: 60461916
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.6 Md
Time: Thu September 6, 2012 09:57AM (PDT)
Thu September 6, 2012 16:57 (UTC)
Distance From: 20.4 km ( 12.7 mi) ENE ( 62. azimuth) from Poulsbo, WA
21.4 km ( 13.3 mi) NW ( 317. azimuth) from Kirkland, Wa
23.3 km ( 14.4 mi) SW ( 221. azimuth) from Everett, WA
Coordinates: 47.822, -122.404
Depth: 17.5 Km (10.68 miles)
Location Quality: Excellent
Event Id: 60461916
Horizontal Uncertainty: 0.4 Km
Depth Uncertainty: 1.33 Km
Azimuthal Gap: 42.0 deg
Number of Phases: 35
RMS Misfit: 0.21

Historic Activity

Historic_map_icon

Focal Mechanism

More Information

Solution 1

Uw60461916.uwfm1
Number of P First Motions: 21
Plane A Plane B Uncertainty
Strike 330º 240º 23.0º
Dip 20º 90º 30.0º
Rake -180º -70º 10.0º

Discrepant Stations

Station Network Channel Polarity Quality
GMW UW EHZ U 0.98
HDW UW EHZ D 0.98
RATT UW BHZ D 0.92
LCW UW EHZ U 0.92

Solution 2

Uw60461916.uwfm2
Number of P First Motions: 21
Plane A Plane B Uncertainty
Strike 85º 310º 25.0º
Dip 80º 14º 30.0º
Rake 80º 135º 50.0º

Discrepant Stations

Station Network Channel Polarity Quality
SQM UW EHZ U 0.92
RATT UW BHZ D 0.92
WRW UW EHZ U 0.92
LCW UW EHZ U 0.92

Solution 3

Uw60461916.uwfm3
Number of P First Motions: 21
Plane A Plane B Uncertainty
Strike 85º 310º 25.0º
Dip 80º 14º 30.0º
Rake 80º 135º 50.0º

Discrepant Stations

Station Network Channel Polarity Quality
SQM UW EHZ U 0.92
RATT UW BHZ D 0.92
WRW UW EHZ U 0.92
LCW UW EHZ U 0.92

Solution 4

Uw60461916.uwfm4
Number of P First Motions: 21
Plane A Plane B Uncertainty
Strike 330º 240º 23.0º
Dip 20º 90º 30.0º
Rake -180º -70º 10.0º

Discrepant Stations

Station Network Channel Polarity Quality
GMW UW EHZ U 0.98
HDW UW EHZ D 0.98
RATT UW BHZ D 0.92
LCW UW EHZ U 0.92
60461916

Station

Code, or name, to designate a particular seismic station