Pacific Northwest Seismic Network

M1.4 earthquake - 8.2 mi W from Mt Rainier, WA

Status: Reviewed
Magnitude1.4Time2021/04/23 06:39:41 AM UTCDepth4.06 miCoordinates46.8365, -121.9318ID61717632

Origin

Statistics on estimate of an earthquake's location and time. For more info, see Earthquake Terminology.
Orid
3156633
Magnitude
1.43
Time
1619160008.9099998
Latitude
46.83650
Longitude
-121.93183
Depth
4.06 mi
Location Quality
Excellent
Event ID
61717632
Event Type
eq
Gtype
l
Horizontal Uncertainty
0.12 mi
Depth Uncertainty
0.22 mi
Azimuthal Gap
61 deg
Number of Phases
45
RMS Misfit
0.15

Focal Mechanisms

Describes the fault orientation and slip direction of an earthquake and are generated using first motion (up or down) observations.

Solution 1

Focal mechanism solution for event

Number of P First motions: 14

Plane APlane BUncertainty
Strike19530925
Dip753323
Rake-60-15135

Discrepant Stations

Stations whose observed first-motion does not match the predicted first-motion from the focal mechanism.
StationNetworkChannelPolarityQuality
RATTUWHHZD0.9243
STDCCBHZU0.9243