Identifying Isotropic Events using an Improved Regional Moment Tensor Inversion Technique

Technical Report · Thu Dec 08 00:00:00 EST 2016

DOI:https://doi.org/10.2172/1342036· OSTI ID:1342036

Dreger, Douglas S. ^[1]; Ford, Sean R. ^[2]; Walter, William R. ^[3]

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1. Univ. of California, Berkeley, CA (United States)
2. Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Research was carried out investigating the feasibility of using a regional distance seismic waveform moment tensor inverse procedure to estimate source parameters of nuclear explosions and to use the source inversion results to develop a source-type discrimination capability. The results of the research indicate that it is possible to robustly determine the seismic moment tensor of nuclear explosions, and when compared to natural seismicity in the context of the a Hudson et al. (1989) source-type diagram they are found to separate from populations of earthquakes and underground cavity collapse seismic sources.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1342036
• Report Number(s): LLNL-TR-713716; TRN: US1701872
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
NUCLEAR EXPLOSIONS
EARTHQUAKES
SEISMIC SOURCES
WAVE FORMS
CAVITIES