Magnitude 1.7 WESTERN MONTANA
2009 November 07 20:49:31 UTC
Preliminary Earthquake Report
| Magnitude | 1.7 |
|---|---|
| Date-Time |
2009 11 07 20:49:31 UTC
Time of Earthquake in other Time Zones |
| Location | 46.90N 112.11W |
| Depth | 0.0 kilometers |
| Region | WESTERN MONTANA |
| Distances |
35 km (20 miles) N of HELENA, Montana 90 km (55 miles) SW of Great Falls, Montana 100 km (60 miles) WNW of White Sulphur Springs, Montana 105 km (65 miles) NE of Anaconda, Montana |
| Location Quality | Error estimate: horizontal +/- 0.4 km; depth fixed by location program |
|
Location Quality Parameters |
Nst=9, Nph=9, Dmin=16 km, Rmss=0.12 sec, Gp=194.4 degrees |
| Source | |
| Event ID | mb21376 |

