This is what was posted until USGS took it down:
Earthquake Details
* This is a computer-generated message -- this event has not yet been reviewed by a seismologist.
Magnitude 4.6
Date-Time
* Saturday, February 12, 2011 at 02:36:09 UTC
* Friday, February 11, 2011 at 07:36:09 PM at epicenter
Location 44.270°N, 110.973°W
Depth 15.5 km (9.6 miles)
Region YELLOWSTONE NATIONAL PARK, WYOMING
Distances
* 32 km (20 miles) ENE (58°) from Warm River, ID
* 39 km (24 miles) SE (131°) from Island Park, ID
* 42 km (26 miles) NE (44°) from Drummond, ID
* 45 km (28 miles) SSE (166°) from West Yellowstone, MT
* 398 km (247 miles) N (11°) from Salt Lake City, UT
Location Uncertainty horizontal +/- 1.8 km (1.1 miles); depth +/- 5.7 km (3.5 miles)
Parameters NST= 8, Nph= 8, Dmin=53 km, Rmss=0.26 sec, Gp=140°,
M-type=local magnitude (ML), Version=0
Source
* University of Utah Seismograph Stations
Event ID uu00005729
* This is a computer-generated message -- this event has not yet been reviewed by a seismologist.
Magnitude 4.6
Date-Time
* Saturday, February 12, 2011 at 02:36:09 UTC
* Friday, February 11, 2011 at 07:36:09 PM at epicenter
Location 44.270°N, 110.973°W
Depth 15.5 km (9.6 miles)
Region YELLOWSTONE NATIONAL PARK, WYOMING
Distances
* 32 km (20 miles) ENE (58°) from Warm River, ID
* 39 km (24 miles) SE (131°) from Island Park, ID
* 42 km (26 miles) NE (44°) from Drummond, ID
* 45 km (28 miles) SSE (166°) from West Yellowstone, MT
* 398 km (247 miles) N (11°) from Salt Lake City, UT
Location Uncertainty horizontal +/- 1.8 km (1.1 miles); depth +/- 5.7 km (3.5 miles)
Parameters NST= 8, Nph= 8, Dmin=53 km, Rmss=0.26 sec, Gp=140°,
M-type=local magnitude (ML), Version=0
Source
* University of Utah Seismograph Stations
Event ID uu00005729
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