M3.0 earthquake - 6.03 mi WNW from Mt St Helens, WA
Status: Reviewed
101 Felt ReportsReport your experience
Magnitude3.0Time2024/01/05 03:48:41 AM UTCDepth6.82 miCoordinates46.1995, -122.3182ID61978896
Origin
Statistics on estimate of an earthquake's location and time. For more info, see Earthquake Terminology.Orid
3252558Magnitude
2.99Time
1704426548.4699974Latitude
46.19950Longitude
-122.31817Depth
6.82 miLocation Quality
ExcellentEvent ID
61978896Event Type
eqGtype
lHorizontal Uncertainty
0.12 miDepth Uncertainty
0.2 miAzimuthal Gap
30 degNumber of Phases
105RMS Misfit
0.18Focal Mechanisms
Describes the fault orientation and slip direction of an earthquake and are generated using first motion (up or down) observations.Solution 1

Number of P First motions: 70
| Plane A | Plane B | Uncertainty | |
|---|---|---|---|
| Strike | 65 | 294 | 28 |
| Dip | 60 | 41 | 28 |
| Rake | 60 | 130 | 40 |
Discrepant Stations
Stations whose observed first-motion does not match the predicted first-motion from the focal mechanism.| Station | Network | Channel | Polarity | Quality |
|---|---|---|---|---|
| FALCO | UW | HNZ | U | 0.9243 |