Magnitude 4.6 - WESTERN MONTANA
2005 October 31 00:23:30 UTC
Earthquake Details
| Magnitude | 4.6 |
|---|---|
| Date-Time |
|
| Location | 44.889°N, 113.422°W |
| Depth | 5 km (3.1 miles) set by location program |
| Region | WESTERN MONTANA |
| Distances |
|
| Location Uncertainty | horizontal +/- 4.1 km (2.5 miles); depth fixed by location program |
| Parameters | NST= 37, Nph= 37, Dmin=45.6 km, Rmss=0.61 sec, Gp= 61°, M-type=teleseismic moment magnitude (Mw), Version=R |
| Source |
|
| Event ID | usevax |
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Earthquake Summary
Felt Reports
Felt (V) at Leadore; (IV) at Clayton snd Salmon; (III) at Challis, Hailey and Ketchum, Idaho. Also felt at Butte, Dillon and Missoula, Montana. Felt as far as Pullman, Washington.
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Scientific & Technical Information
Additional Information, News Reports
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver


