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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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4 An Alternative Approach
Pages 19-22

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From page 19...
... any other relevant detail, if available." COOPERATIVE MEASURES Passive Cooperation Prominent among the "relevant detail" in the previous paragraph could be a voluntary, one-tune reporting in the first year after entry into force of the CTBT of the times and locations for three of the largest blasts from mines blasting over 300 metric tons of explosives. Additional information on charge per delay and delay intervals would also be useful.
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From page 20...
... However, it would be extremely useful from a monitoring point of view if mine operators would report the location and approximate time of up to three if any-of their largest collapses or rock bursts that occurred just before or within a few years after entry into force of the CTBT. Active Cooperation Those very few mining operations, as discussed in Chapter 3, that might emit large, ambiguous signals that might cause consultation and clarification inquiries from other nations may want to advance to active measures, such as the installation of an unintrusive, on-site monitoring system of the type discussed in the DOE Working Group report (see text box in Chapter 31.
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From page 21...
... The USGS, which is a scientific and technical agency with no regulatory or land management responsibilities, monitors all seismic events in the country, including mine blasts, and currently has an agreement with the Department of Defense to provide CTBT-related data on U.S. mine blasts and events.
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From page 22...
... Without calibration, the location error ellipse for a particular seismic event may contain many mines, all of which would likely have to be contacted. Calibration of travel-time models will also result in a substantial increase in the understanding of crustal structure and velocity, and improvement in earthquake locations in areas where local networks do not exist.
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Key Terms

  • technical agency
  • policy agency
  • seismic signals
  • data gathering
  • technical secretariat

  • rock failures
  • mines blasting
  • time mark
  • treaty asks
  • mine operations

  • firing delay
  • existing federal
  • test ban
  • seismometer equipped
  • particular seismic

  • relevant information
  • treaty organization
  • geological survey
  • included requests
  • voluntary measures

  • fingerprinting exercise
  • appropriate information
  • previous section
  • efforts outlined
  • determined firing

  • accurate radio
  • type discussed
  • active measures
  • observed seismically
  • collapse events


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