Earthquake Report

Magnitude: 1.3
Fri September 21, 2012 02:54AM (PDT)
Event Id: 60454437
Version #3: This report supersedes any earlier report of this event
This event has been reviewed by a seismologist
Magnitude: 1.3 Md
Time: Fri September 21, 2012 02:54AM (PDT)
Fri September 21, 2012 09:54 (UTC)
Distance From: 6.6 km ( 4.1 mi) SSW ( 208. azimuth) from Morton, WA
40.4 km ( 25.1 mi) S ( 185. azimuth) from Eatonville, WA
54.5 km ( 33.9 mi) ESE ( 115. azimuth) from Centralia, WA
Coordinates: 46.506, -122.316
Depth: 20.49 Km (12.5 miles)
Location Quality: Excellent
Event Id: 60454437
Horizontal Uncertainty: 0.37 Km
Depth Uncertainty: 1.04 Km
Azimuthal Gap: 71.0 deg
Number of Phases: 37
RMS Misfit: 0.16

Historic Activity

Historic_map_icon

Focal Mechanism

More Information

Solution 1

Uw60454437.uwfm1
Number of P First Motions: 22
Plane A Plane B Uncertainty
Strike 310º 203º 5.0º
Dip 80º 31º 10.0º
Rake -120º -19º 10.0º

Discrepant Stations

Station Network Channel Polarity Quality
PCMD UW EHZ U 0.98
LON UW BHZ D 0.98
FMW UW EHZ D 0.92
GSM UW EHZ U 0.92

Solution 2

Uw60454437.uwfm2
Number of P First Motions: 22
Plane A Plane B Uncertainty
Strike 95º 317º 40.0º
Dip 20º 75º 10.0º
Rake -130º -77º 50.0º

Discrepant Stations

Station Network Channel Polarity Quality
HSR UW EHZ D 0.98
JUN UW EHZ D 0.98
MTM UW EHZ D 0.92
GLK UW EHZ U 0.98
RVC UW EHZ D 0.92
FMW UW EHZ D 0.92
60454437