Seismic Moment Tensor Report for the 06 Aug 2007, M3.9 Seismic Event in Central Utah

Ford, S R ; Dreger, D S ; Walter, W R ; Hellweg, M ; Urhammer, R

Lawrence Livermore National Laboratory

关键词: Seismic Waves;    Seismic Events;    Seismic Sources;    58 Geosciences;   

DOI  :  10.2172/924951
RP-ID  :  UCRL-TR-233759
RP-ID  :  W-7405-ENG-48
RP-ID  :  924951

美国|英语

来源: UNT Digital Library

【 摘 要 】

We have performed a complete moment tensor analysis (Minson and Dreger, 2007) of the seismic event, which occurred on Monday August 6, 2007 at 08:48:40 UTC, 21 km from Mount Pleasant, Utah. The purpose of this report is to present our scientific results, making them available to other researchers working on seismic source determination problems, and source type identification. In our analysis we used complete, three-component seismic records recorded by stations operated by the USGS, the University of Utah and EarthScope. The results of our analysis show that most of the seismic wave energy is consistent with an underground collapse, however the cause of the mine collapse is still unknown.