Re: Western montana



Bob Officer wrote:
> anyone else notice the series of quakes in Western Montana. Yellowstone
> Super Caldera showing more signs of life?
>
> also the 4.5 in Hawaii suppliments the series of on going shakers there. Are
> these all magma movements?

See:
http://earthquake.usgs.gov/recenteqsUS/Maps/US10/37.47.-115.-105.html

Recent Earthquake Activity in the USA

Magnitude 3.0 - WYOMING
2005 July 27 06:51:21 UTC
Preliminary Earthquake Report
University of Utah Seismograph Stations

A minor earthquake occurred at 06:51:21 (UTC) on Wednesday, July 27,
2005. The magnitude 3.0 event has been located in WYOMING. The
hypocentral depth was poorly constrained. (This is a computer-generated
message -- this event has not yet been reviewed by a seismologist.)

Magnitude 3.0
Date-Time Wednesday, July 27, 2005 at 06:51:21 (UTC)= Coordinated
Universal Time
Wednesday, July 27, 2005 at 12:51:21 AM = local time at epicenter

Location 44.074°N, 110.456°W
Depth 0.2 km (~0.1 mile) (poorly constrained)
Region WYOMING
Distances 56 km (35 miles) NE (51°) from Alta, WY
62 km (38 miles) NNE (29°) from Teton Village, WY
63 km (39 miles) ENE (63°) from Tetonia, ID
71 km (44 miles) NNE (21°) from Jackson, WY
387 km (241 miles) NNE (17°) from Salt Lake City, UT

Location Uncertainty horizontal +/- 1 km (0.6 miles); depth +/- 11 km
(6.8 miles)
Parameters Nst= 32, Nph= 32, Dmin=22 km, Rmss=0.42 sec, Gp=130°,
M-type=local magnitude (ML), Version=0
Source University of Utah Seismograph Stations

Event ID uu00006419
-----------------------------------------------------------------------
Also I am wondering about the increase in activity in Utah of late.

Makes you wonder....

Shelly M.
Portland OR Metro Area

.

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