Seismic Signals from Mining Operations and the Comprehensive Test Ban Treaty Comments on a Draft Report by a Department of Energy Working Group (1998) / Chapter Skim
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1 Introduction
1 Introduction
Pages 3-10
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From page 3... ...
1 Research Required to Support Comprehensive Nuclear Test Ban Treaty Monitoring, Committee on Seismology, Board on Earth Sciences and Resources, National Research Council, p.
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Uncertainties in the seismically determined locations of such an event may not allow assignment of an event to a specific mine unless local data are available. By itself, determination of location may not be sufficient to identify the source type, and event identification will need to rely on distinguishing features of the seismic wave forms, possibly in conjunction with other monitoring technologies.
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Hence, some mining activities can produce seismic signals that could possibly be mistaken for clandestine nuclear blasts. AMBIGUITY AND ON-SITE INSPECTIONS Experience suggests that most seismic signals that generate suspicion will probably be either anomalous shallow earthquakes, mine collapses, or large mining blasts that occur at the surface or unclerground.
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A stated goal of the DOE Working Group' s6 draft report, Reducing the Ambiguity and Visibility of Seismic Signals fi om Mining Activities, is to identify 6 The Working Group convened by the Department of Energy's Office of Non-Proliferation and National Security was co-chaired by Francois Heuze (Lawrence Livermore National Laboratory) and Brian Stump (Los Alamos National Laboratory)
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; differences in amplitude of Eg waves clearly distinguish the two events. Adapted from Walter, 1996 (Lawrence Livermore National Laboratory, UCRL-MI-123958)
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if the mining practices recommended...are adopted by the mining companies, they will likely provide intrinsic safety and economic benefits to mine operators." The other beneficiary is the community responsible for monitoring the CTBT. For this community, the report states that "wide spread adoption of these frecommended]
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