Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Scientific Correspondence
  • Published:

Putting nuclear-test monitoring to the test

Abstract

On the 22 August 1998, 0.1 kilotonnes of conventional explosives was fired underground at the nuclear test site of the former Soviet Union at Degelen Mountain in eastern Kazakhstan. This explosion, which we refer to as K980822, was carried out by the Republic of Kazakhstan, in cooperation with the United States, to seal tunnels at the site. It provided an opportunity to assess the network of seismological stations being set up as part of the International Monitoring System (IMS) to verify the Comprehensive Test Ban by detecting and identifying low-magnitude disturbances. Despite its low yield, short-period signals from the explosion were recorded up to 88° away. The seismograms recorded are sufficient to identify the disturbance as suspicious and, if the test-ban treaty were in force, could have led to a demand for an on-site inspection to determine whether a nuclear test had taken place.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Azimuthal equal-area projection of the Earth, centred on the epicentre of K980822, showing the IMS stations that recorded seismic waves.
Figure 2: Short-period P-wave seismograms from K980822.

References

  1. Douglas, A., Hudson, J. A., Marshall, P. D. & Young, J. B. Geophys. J. R. Astron. Soc. 36, 227–233 (1974).

    Google Scholar 

  2. Douglas, A., Marshall, P. D., Young, J. B. & Hudson, J. A. Nature 248, 743–745 (1974).

    Article  ADS  Google Scholar 

  3. Douglas, A. Bull. Seismol. Soc. Am. 87, 770–777 (1997).

    Google Scholar 

  4. Pearce, R. G. & Rogers, R. M. J. Geophys. Res. 94, 775–786 (1989).

    Google Scholar 

  5. Pearce, R. G. in Monitoring a Comprehensive Test Ban Treaty (eds Husebye, E. S. & Dainty, A. M.) 805-832 (Kluwer, Dordrecht, 1996).

  6. Denny, M. (ed.) Proceedings of the symposium on the Non-Proliferation Experiment (NPE): Results and Implications for Test Ban Treaties (Lawrence Livermore National Laboratory, US Department of Energy, 1994).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Douglas, A., Bowers, D., Marshall, P. et al. Putting nuclear-test monitoring to the test. Nature 398, 474–475 (1999). https://doi.org/10.1038/19000

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/19000

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing