Abstract
Seismic and infrasonic observations of signals from a sequence of near-surface explosions at a site on the Kola Peninsula have been analyzed. NORSAR’s automatic network processing of these events shows a significant scatter in the location estimates and, to improve the automatic classification of the events, we have performed full waveform cross-correlation on the data set. Although the signals from the different events share many characteristics, the waveforms do not exhibit a ripple-for-ripple correspondence and cross-correlation does not result in the classic delta-function indicative of repeating signals. Using recordings from the ARCES seismic array (250 km W of the events), we find that a correlation detector on a single channel or three-component station would not be able to detect subsequent events from this source without an unacceptable false alarm rate. However, performing the correlation on each channel of the full ARCES array, and stacking the resulting traces, generates a correlation detection statistic with a suppressed background level which is exceeded by many times its standard deviation on only very few occasions. Performing f-k analysis on the individual correlation coefficient traces, and rejecting detections indicating a non-zero slowness vector, results in a detection list with essentially no false alarms. Applying the algorithm to 8 years of continuous ARCES data identified over 350 events which we confidently assign to this sequence. The large event population provides additional confidence in relative travel-time estimates and this, together with the occurrence of many events between 2002 and 2004 when a temporary network was deployed in the region, reduces the variability in location estimates. The best seismic location estimate, incorporating phase information for many hundreds of events, is consistent with backazimuth measurements for infrasound arrivals at several stations at regional distances. At Lycksele, 800 km SW of the events, as well as at ARCES, infrasound is detected for most of the events in the summer and for few in the winter. At Apatity, some 230 km S of the estimated source location, infrasound is detected for most events. As a first step to providing a Ground Truth database for this useful source of infrasound, we provide the times of explosions for over 50 events spanning 1 year.
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References
Arrowsmith, S. J., Hedlin, M. A. H., Arrowsmith, M.D., and Stump, B. W. (2007), Identification of delay-fired mining explosions using seismic arrays: Application to the PDAR array in Wyoming, USA, Bull. Seismol. Soc. Am. 97, 989–1001
Arrowsmith, S. J., Whitaker, R., Taylor, S. R., Burlacu, R., Stump, B., Hedlin, M., Randall, G., Hayward, C., and ReVelle, D. (2008), Regional monitoring of infrasound events using multiple arrays: Application to Utah and Washington State, Geophys. J. Int. 175, 291–300
Bonner, J. L., Pearson, D. C., and Blomberg, W. S. (2003), Azimuthal variation of short-period Rayleigh waves from cast blasts in northern Arizona, Bull. Seismol. Soc. Am. 93, 724–736
Brown, D. J., Katz, C. N., Le Bras, R., Flanagan, M. P., Wang, J., and Gault, A. K. (2002), Infrasonic signal detection and source location at the prototype International Data Centre, Pure Appl. Geophys. 159, 1081–1125
Bungum, H., Hokland, B. K., Husebye, E. S., and Ringdal, F. (1979), An exceptional intraplate earthquake sequence in Meløy, northern Norway, Nature 280, 32–35
Che, I.-Y., Shin, J. S., and Kang, I. B. (2009), Seismo-acoustic location method for small-magnitude surface explosions, Earth, Planets, and Space 61, e1–e4
Evers, L. G. and Haak, H. W. (2007), Infrasonic forerunners: Exceptionally fast acoustic phases, Geophys. Res. Lett. 34, L10806, doi:10.1029/2007GL029353
Frankel, A., Hough, S., Friberg, P., and Busby, R. (1991), Observations of Loma Prieta aftershocks from a dense array in Sunnyvale, California, Bull. Seismol. Soc. Am. 81, 1900–1922
Garcés, M. A., Hansen, R. A., and Lindquist, K. G. (1998), Travel times for infrasonic waves propagating in a stratified atmosphere, Geophys. J. Int. 135, 255–263
Geller, R. J. and Mueller, C. S. (1980), Four similar earthquakes in central California, Geophys. Res. Lett. 7, 821–824
Gibbons, S. J. (2006), On the identification and documentation of timing errors: An example at the KBS station, Spitsbergen, Seism. Res. Lett. 77, 559–571
Gibbons, S. J. and Ringdal, F. (2006), The detection of low magnitude seismic events using array-based waveform correlation, Geophys. J. Int. 165, 149–166
Gibbons, S. J. and Ringdal, F. (2007), A Case Study of Seismic Event Identification: Explosions in NW Russia using the ARCES seismic array, NORSAR Scientific Report: Semiannual Technical Summary No. 1-2007, NORSAR, Kjeller, Norway. 73–81
Gibbons, S. J., Kværna, T., and Ringdal, F. (2005), Monitoring of seismic events from a specific source region using a single regional array: A case study, J. Seismol. 9, 277–294
Gibbons, S. J., Bøttger Sørensen, M., Harris, D. B., and Ringdal, F. (2007a), The detection and location of low magnitude earthquakes in northern Norway using multi-channel waveform correlation at regional distances, Phys. Earth Planet. Inter. 160, 285–309
Gibbons, S. J., Ringdal, F., and Kværna, T. (2007b), Joint seismic-infrasonic processing of recordings from a repeating source of atmospheric explosions, J. Acoust. Soc. Am. 122, EL158–EL164
Gibbons, S. J., Kværna, T., and Ringdal, F. (2009), Considerations in phase estimation and event location using small-aperture regional seismic arrays, Pure Appl. Geophys., doi:10.1007/s00024-009-0024-1
Harris, D. B. (1991), A waveform correlation method for identifying quarry explosions, Bull. Seism. Soc. Am. 81, 2395–2418
Hicks, E. C., Kværna, T., Mykkeltveit, S., Schweitzer, J., and Ringdal, F. (2004), Travel-times and attenuation relations for regional phases in the Barents Sea region, Pure Appl. Geophys. 161, 1–19
Israelsson, H. (1990), Correlation of waveforms from closely spaced regional events, Bull. Seismol. Soc. Am. 80, 2177–2193
Kennett, B. L. N., The Seismic Wavefield. Volume II: Interpretation of Seismograms on Regional and Global Scales. (Cambridge University Press, Cambridge, 2002)
Kennett, B. L. N., Engdahl, E. R., and Buland, R. (1995), Constraints on seismic velocities in the Earth from travel times, Geophys, J. Int. 122, 108–124
Kim, W.-Y., Aharonian, V., Lerner-Lam, A. L., and Richards, P. G. (1997), Discrimination of earthquakes and explosions in southern Russia using regional high-frequency three-component data from the IRIS/JSP Caucasus Network, Bull. Seismol. Soc. Am. 87, 569–588
Kværna, T. and Ringdal, F. (1986), Stability of various f-k estimation techniques, NORSAR Scientific Report: Semiannual Technical Summary No. 1-1986/1987, NORSAR, Kjeller, Norway, pp. 29–40
Le Pichon, A., Vergoz, J., Henry, P., and Ceranna, L. (2008), Analyzing the detection capability of infrasound arrays in Central Europe, J. Geophys. Res. 113, D12115, doi:10.1029/2007JD009509
Le Pichon, A., Vergoz, J., Blanc, E., Guilbert, J., Ceranna, L., Evers, L., and Brachet, N. (2009), Assessing the performance of the International Monitoring System’s infrasound network: Geographical coverage and temporal variabilities, J. Geophys. Res. 114, D08112, doi:10.1029/2008JD010907
MacCarthy, J., Hartse, H., Greene, M., and Rowe, C. (2008), Using waveform cross-correlation and satellite imagery to identify repeating mine blasts in Eastern Kazakhstan, Seism. Res. Lett. 79, 393–399
Maercklin, N., Mykkeltveit, S., Schweitzer, J., Rock, D., and Harris, D. B. (2005), Data from deployment of temporary seismic stations in northern Norway and Finland, NORSAR Scientific Report: Semiannual Technical Summary No. 1-2005, NORSAR, Kjeller, Norway, pp. 77–85
McKenna, M. H., Stump, B. W., Hayek, S., McKenna, J. R., and Stanton, T. R. (2007), Tele-infrasonic studies of hard-rock mining explosions, J. Acoust. Soc. Am. 122, 97–106
McLaughlin, K. L., Bonner, J. L., and Barker, T. (2004), Seismic source mechanisms for quarry blasts: Modelling observed Rayleigh and Love wave patterns from a Texas quarry, Geophys. J. Int. 156, 79–93
Mykkeltveit, S. and Ringdal, F., Phase identification and event location at regional distances using small-aperture array data. In Identification of Seismic Sources—Earthquake or Underground Explosions (eds. E. S. Husebye and S. Mykkeltveit) (Reidel Publishing Company, 1981), pp. 467–481
Richards, P. G., Waldhauser, F., Schaff, D., and Kim, W.-Y. (2006), The applicability of modern methods of earthquake location, Pure Appl. Geophys. 163, 351–372
Ringdal, F. and Kværna, T. (1989), A multi-channel processing approach to real time network detection, phase association, and threshold monitoring, Bull. Seismol. Soc. Am. 79, 1927–1940
Ringdal, F., Gibbons, S. J., Kværna, T., Asming, V., Vinogradov, Y., Mykkeltveit, S., and Schweitzer, J., Research in regional seismic monitoring. In Proc. 27th Seismic Res. Rev., Rancho Mirage, California, September 20–22, 2005. Ground-Based Nuclear Explosion Monitoring Technologies, LA-UR-05-6407 (2005), pp. 423–432
Ringdal, F., Gibbons, S. J., and Harris, D. B., Adaptive waveform correlation detectors for arrays: Algorithms for autonomous calibration. In Proc. 30th Monitoring Research Review, Portsmouth, Virginia, September 23–25, 2008. Ground-Based Nuclear Explosion Monitoring Technologies, LA-UR-08-05261 (2008), pp. 465–474
Schaff, D. P. (2008), Semiempirical statistics of correlation-detector performance, Bull. Seismol. Soc. Am. 98, 1495–1507
Schulte-Theis, H. and Joswig, M. (1993), Clustering and location of mining induced seismicity in the Ruhr Basin by automated Master Event Comparison based on Dynamic Waveform Matching (DWM), Computers and Geosci. 19, 233–241
Schweitzer, J. (2001), HYPOSAT-An enhanced routine to locate seismic events, Pure Appl. Geophys. 158, 277–289
Shelly, D. P., Beroza, G. C., and Ide, S. (2007), Non-volcanic tremor and low-frequency earthquake swarms, Nature 446, 305–307
Skorve, J., The Kola satellite image atlas: Perspectives on arms control and environmental protection, Security Policy Library (The Norwegian Atlantic Committee, 1991). ISBN 82-90161-37-9
Stevens, J. L., Gibbons, S., Rimer, N., Xu, H., Lindholm, C., Ringdal, F., Kvaerna, T., and Murphy, J. R. (2006), Analysis and simulation of chemical explosions in nonspherical cavities in granite, J. Geophys. Res. 111, B04306, doi:10.1029/2005JB003768
Storchak, D. A., Schweitzer, J., and Bormann, P. (2003), The IASPEI standard seismic phase list, Seismolog. Res. Lett. 74, 761–772
Stump, B. W. and Reinke, R. E. (1988), Experimental confirmation of superposition from small-scale explosions, Bull. Seismol. Soc. Am. 78, 1059–1073
Szuberla, C. A. L. and Olson, J. V. (2004), Uncertainties associated with parameter estimation in atmospheric infrasound arrays, J. Acoust. Soc. Am. 115, 253–258
Thomson, D. J. (1982), Spectrum estimation and harmonic analysis, Proc. IEEE 70, 1055–1096
Wessel, P. and Smith, W. H. F. (1995), New version of the Generic Mapping Tools, EOS Trans. Am. Geophys. Union 76, 329
Acknowledgments
Maps were created using GMT software (Wessel and Smith, 1995). This material is based upon work supported by the Department of Energy (National Nuclear Security Administration) under Award Number DE-FC52-05NA26604. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. We are grateful to Professor Ludwik Liszka at the Swedish Institute of Space Physics, Umeå, Sweden, for providing access to the infrasound data from the IRF station network. We thank colleagues at the Kola Regional Seismological Center for providing the requested segments of infrasound data from the mircobarograph array at Apatity, Russia. We acknowledge Tormod Kværna of NORSAR and Gary Steele of TU-Delft for technical assistance and two anonymous referees for very constructive reviews which have significantly improved the paper. We acknowledge the IRIS Data Management Center for waveform data from the KEV station in Finland which is operated by the Institute of Seismology at the University of Helsinki. Copies of NORSAR technical reports can be obtained by contacting the authors or by sending an email to info@norsar.no
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Gibbons, S.J., Ringdal, F. Detection and Analysis of Near-Surface Explosions on the Kola Peninsula. Pure Appl. Geophys. 167, 413–436 (2010). https://doi.org/10.1007/s00024-009-0038-8
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DOI: https://doi.org/10.1007/s00024-009-0038-8