1887
Volume 38, Issue 3
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

Synthetic experiments are used to test the applicability of coda wave interferometry (CWI) as a means for estimating distance between sources of nearby earthquakes. Acoustic waves for 45 sources are propagated through a Gaussian random medium. A pair-wise analysis of resulting waveforms illustrates the applicability of CWI as a tool for estimating source separation. Results suggest that, when the waveforms are filtered between 1 and 5 Hz, CWI provides accurate estimates of the separation for source-pairs separated by  < 250 m. The technique provides a lower bound on the actual separation when  > 250 m. The CWI breakdown distance of 250 m is likely to vary with frequency content in the waveforms.

The interpretation of CWI source separation estimates is aided by the construction of a conditional probability density function (PDF) ( ∣ ), which describes the probability of actual separation for given CWI estimates . The conditional PDF provides a constraint on event separation that is asymmetric. It can be used independently of, or combined with, standard travel-time techniques to improve earthquake location.

ASEG
Loading

Article metrics loading...

/content/journals/10.1071/EG07019
2007-09-01
2026-01-23

  • From This Site

    /content/journals/10.1071/EG07019
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Ake J. O’Connell D. Block L. 2005 Deep-injection and closely monitored induced seismicity at Paradox Valley, Colorado: Bulletin of the Seismological Society of America 95 664 683 doi:10.1785/0120040072
    [Google Scholar]
  2. Aster R. C. , Borchers B. , and Thurber C. H. 2005, Parameter Estimation and Inverse Problems: Elsevier Academic Press.
  3. Baig A. M. Dahlen F. A. 2004 Statistics of traveltimes and amplitudes in random media: Geophysical Journal International 158 187 210 doi:10.1111/j.1365-246X.2004.02300.x
    [Google Scholar]
  4. Bokelmann G. H. R. Harjes H. 2000 Evidence for temporal variation of seismic velocity within the upper continental crust: Journal of Geophysical Research 105 B10 23879 23894 doi:10.1029/2000JB900207
    [Google Scholar]
  5. Bondár I. Myers S. C. Engdahl E. R. Bergman E. A. 2004 Epicentre accuracy based on seismic network criteria: Geophysical Journal International 156 483 496 doi:10.1111/j.1365-246X.2004.02070.x
    [Google Scholar]
  6. Courant R. Friedrichs K. Lewy H. 1928 Über die partiellen Differenzengleichungen der mathematischen Physik: Mathematische Annalen 100 32 74 doi:10.1007/BF01448839
    [Google Scholar]
  7. Deichmann N. Garcia-Fernandez M. 1992 Rupture geometry from high precision relative hypocentre locations of microearthquake clusters: Geophysical Journal International 110 501 517 doi:10.1111/j.1365-246X.1992.tb02088.x
    [Google Scholar]
  8. De Rosny J. Roux P. 2001 Multiple scattering in a reflective cavity: application to fish counting in a tank: The Journal of the Acoustical Society of America 109 2587 2597 doi:10.1121/1.1369101
    [Google Scholar]
  9. Frankel A. Clayton R. W. 1986 Finite difference simulations of seismic scattering: implications for the propagation of short-period seismic waves in the crust and models of crustal heterogeneity: Journal of Geophysical Research 91 B6 6465 6489
    [Google Scholar]
  10. Frèmont M.-J. Malone S. D. 1987 High precision relative locations of earthquakes at Mount St. Helens: Journal of Geophysical Research 92 B10 10223 10236
    [Google Scholar]
  11. Got J.-L. Frèchet J. Klein F. W. 1994 Deep fault plane geometry inferred from multiplet relative relocation beneath the south flank of Kilauea: Journal of Geophysical Research 99 B8 15375 15386 doi:10.1029/94JB00577
    [Google Scholar]
  12. Gutenberg B. Richter C. F. 1939 New evidence for a change in physical conditions at depths near 100 kilometers: Bulletin of the Seismological Society of America 29 531 537
    [Google Scholar]
  13. Ito A. 1985 High resolution relative hypocenters of similar earthquakes by cross-spectral analysis method: Journal of Physics of the Earth 33 279 294
    [Google Scholar]
  14. Lees J. M. 1998 Multiplet analysis at Coso Geothermal: Bulletin of the Seismological Society of America 88 1127 1143
    [Google Scholar]
  15. Mosegaard K. Sambridge M. 2002 Monte Carlo analysis of inverse problems: Inverse Problems 18 R29 R54 doi:10.1088/0266-5611/18/3/201
    [Google Scholar]
  16. Nadeau R. M. McEvilly T. V. 1997 Seismological studies at Parkfield V: characteristic microearthquake sequences as fault-zone drilling targets: Bulletin of the Seismological Society of America 87 1463 1472
    [Google Scholar]
  17. Pavlis G. L. 1992 Appraising relative earthquake location errors: Bulletin of the Seismological Society of America 82 836 859
    [Google Scholar]
  18. Poupinet G. Ellsworth W. L. Frechet J. 1984 Monitoring velocity variations in the crust using earthquake doublets: an application to the Calaveras Fault, California: Journal of Geophysical Research 89 B7 5719 5731
    [Google Scholar]
  19. Richards P. G. Waldhauser F. Schaff D. Kim W.-Y. 2006 The applicability of modern methods of earthquake location: Pure and Applied Geophysics 163 351 372 doi:10.1007/s00024-005-0019-5
    [Google Scholar]
  20. Robinson D. J. Snieder R. Sambridge M. Using coda wave interferometry for estimating the variation in source mechanism between double couple events: Journal of Geophysical Research In press
    [Google Scholar]
  21. Rubin A. 2002 a Using repeating earthquakes to correct high-precision earthquake catalogs for time-dependant station delays: Bulletin of the Seismological Society of America 92 1647 1659 doi:10.1785/0120010180
    [Google Scholar]
  22. Rubin A. M. 2002 b Aftershocks of microearthquakes as probes of the mechanics of rupture: Journal of Geophysical Research 107 B7 2142 doi:10.1029/2001JB000496
    [Google Scholar]
  23. Rubin A. M. Gillard D. Got J.-L. 1999 Streaks of microearthquakes along creeping faults: Nature 400 635 641 doi:10.1038/23196
    [Google Scholar]
  24. Scales J. A. Van Wijk K. 2001 Tunable multiple-scattering system: Applied Physics Letters 79 2294 2296 doi:10.1063/1.1402156
    [Google Scholar]
  25. Shearer P. Hauksson E. Lin G. 2005 Southern California hypocenter relocation with waveform cross-correlation, Part 2: Results using source-specific station terms and cluster analysis: Bulletin of the Seismological Society of America 95 904 915 doi:10.1785/0120040168
    [Google Scholar]
  26. Shearer P. M. 1999, Introduction to Seismology: Cambridge University Press.
  27. Snieder R. 1999, Imaging and averaging in complex media: in Fouque, J P (ed.) Diffuse waves in complex media, Volume 531 of NATO Science Series C, 405–454, Kluwer Academic Publishers.
  28. Snieder R. 2004 Extracting the Green’s function from the correlation of coda waves: a derivation based on stationary phase: Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 69 046610
    [Google Scholar]
  29. Snieder R. 2006 The theory of coda wave interferometry: Pure and Applied Geophysics 163 455 473 doi:10.1007/s00024-005-0026-6
    [Google Scholar]
  30. Snieder R. Vrijlandt M. 2005 Constraining the source separation with coda wave interferometry: theory and application to earthquake doublets in the Hayward Fault, California: Journal of Geophysical Research 110 B04301 doi:10.1029/2004JB003317
    [Google Scholar]
  31. Waldhauser F. Ellsworth W. L. 2002 Fault structure and mechanics of the Hayward Fault, California, from double-difference earthquake locations: Journal of Geophysical Research 107 B3 doi:10.1029/2000JB000084
    [Google Scholar]
  32. Waldhauser F. Ellsworth W. L. Cole A. 1999 Slip-parallel lineations on the Northern Hayward Fault, California: Geophysical Research Letters 26 3525 3528 doi:10.1029/1999GL010462
    [Google Scholar]
/content/journals/10.1071/EG07019
Loading
Constraints on coda wave interferometry estimates of source separation: the acoustic caseFN1
Exploration Geophysics 38, 189 (2007); https://doi.org/10.1071/EG07019
/content/journals/10.1071/EG07019
/content/journals/10.1071/EG07019
Loading

Data & Media loading...

  • Article Type: Research Article
Keyword(s): coda wave interferometry; coda waves; earthquake location; relative location

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error