Peer Reviewed Journal Publications

  1. Wu, S.-M., G. Pang, and K. D. Koper (2022). A search for large-scale variations in the fine-scale structure of Earth’s inner core, J. Geophys. Res., in review.
  2. Kong, Q., R. Wang, W. R. Walter, M. Pyle, K. Koper, and B. Schmandt (2022). Combining deep learning with physics based features in explosion-earthquake discrimination, Geophys. Res. Lett., in press.
  3. Pang, G., and K. D. Koper (2022). Excitation of Earth’s inner core rotational oscillation during 2001–2003 captured by earthquake doublets, Earth Planet. Sci. Lett., 584, 117504, doi:10.1016/j.epsl.2022.117504.
  4. Holt, J., J. C. Pechmann, and K. D. Koper (2022). Recalibration of the local magnitude (ML) scale for earthquakes in the Yellowstone volcanic region, Bull. Seism. Soc. Am., 112, 905–920, doi:10.1785/0120210240.

  5. Wang, R., B. Schmandt, M. Holt, and K. D. Koper (2021). Advancing local distance discrimination of explosions and earthquakes with joint P/S and ML-MC classification, Geophys. Res. Lett., e2021GL09572148, doi:10.1029/2021GL095721.
  6. Li, J., M. Chen, K. D. Koper, T. Zhou, S. Li, G. Li (2021). FastTrip: A fast MPI-accelerated 1D triplication waveform inversion package for constraining mantle transition zone discontinuities, Seism. Res. Lett., 92, 2647–2656, doi:10.1785/0220200475.
  7. Gold, R. D., J. Bormann, and K. D. Koper (2021). Preface to the focus section on the 2020 Intermountain west earthquakes, Seism. Res. Lett., 92, 636–639, doi:10.1785/0220210001.
  8. Tibi, R., P. Hammond, R. Brogan, C. J. Young, and K. D. Koper (2021). Deep learning denoising applied to regional distance seismic data in Utah, Bull. Seism. Soc. Am., 111, 775–790, doi:10.1785/0120200292.
  9. Holt, J., K. M. Whidden, K. D. Koper, K. L. Pankow, K. Mayeda, J. C. Pechmann, B. Edwards, R. Gök, and W. R. Walter (2021). Toward robust and routine determination of Mw for small earthquakes: Application to the 2020 Mw 5.7 Magna, Utah, seismic sequence, Seism. Res. Lett., 92, 725–740, doi:10.1785/0220200320.
  10. Baker, B., M. M. Holt, K. L. Pankow, K. D. Koper, and J. Farrell (2021). Monitoring the 2020 Magna, Utah earthquake sequence with nodal seismometers and machine learning, Seism. Res. Lett., 92, 787–801, doi:10.1785/0220200316.
  11. Pankow, K. L., J. Rusho, J. C. Pechmann, J. M. Hale, K. Whidden, R. Sumsion, J. Holt, M. Mesimeri, D. Wells, and K. D. Koper (2021). Responding to the 2020 Salt Lake Valley, Utah earthquake sequence during the COVID-19 pandemic shutdown, Seism. Res. Lett., 92, 6–16, doi:10.1785/0220200265.
  12. Koper, K. D., M. M. Holt, J. R. Voyles, R. Burlacu, M. L. Pyle, R. Wang, and B. Schmandt (2021). Discrimination of small earthquakes and buried single-fired chemical explosions at local distances (<150 km) in the Western U. S. from comparison of local magnitude (ML) and coda duration magnitude (MC), Bull. Seism. Soc. Am., 111, 558–570, doi:10.1785/0120200188.
  13. Johnson, S. A., D. J. A. Chambers, M. S. Boltz, and K. D. Koper (2021). Application of a convolutional neural network for seismic phase picking of mining-induced seismicity, Geophys. J. Inter., 224, 230–240, doi:10.1093/gji/ggaa449.

  14. Pang, G., K. D. Koper, M. Mesimeri, K. L. Pankow, B. Baker, J. Farrell, J. Holt, P. Roberson, R. Burlacu, J. C. Pechmann, K. Whidden, M. M. Holt, A. Allam, and C. DuRoss (2020). Seismic analysis of the 2020 Magna, Utah, earthquake sequence: Evidence for a listric Wasatch fault, Geophys. Res. Lett., 47, e2020GL089798, doi:10.1029/2020GL089798.
  15. Anthony, R. E., A. T. Ringler, D. C. Wilson, M. Bahavar, and K. D. Koper (2020). How processing methodologies can distort and bias power spectral density estimates of seismic background noise, Seism. Res. Lett., 91, 1694–1706, doi:10.1785/0220190212.
  16. Xu, Y., Koper, K. D., Burlacu, R., Herrmann, R. B., & Li, D.-N. (2020). A new uniform moment tensor catalog for Yunnan, China, from January 2000 through December 2014, Seism. Res. Lett., 91, 891–900, doi:10.1785/0220190242.
  17. Pankow, K. L., M. Stickney, J. Y. Ben-Horin, M. Litherland, S. Payne, K. D. Koper, S. L. Bilek, and K. Bogolub (2020). Regional seismic network monitoring in the eastern Intermountain West, Seism. Res. Lett., 91, 631646, doi:10.1785/0220190209.
  18. Voyles, J., M. M. Holt, J. M. Hale, K. D. Koper, R. Burlacu, and D. J. A. Chambers (2020), A new catalog of explosion source parameters in the Utah region with application to ML-MC based depth discrimination at local distances, Seism. Res. Lett., 91, 222236, doi:10.1785/0220190185.
  19. Wu, S.-M., F.-C. Lin, J. Farrell, B. Shiro, L. Karlstrom, P. Okubo, and K. D. Koper (2020). Spatiotemporal seismic structure variations associated with the 2018 Kilauea eruption based on temporary dense geophone arrays, Geophys. Res. Lett., 47, e2019GL086668, doi:10.1029/2019GL086668.
  20. Koper, K. D. (2020), The importance of regional seismic networks in monitoring nuclear test-ban treaties, Seism. Res. Lett., 91, 573580, doi:10.1785/0220190160.

  21. Holt, M. M., K. D. Koper, W. Yeck, S. D’Amico, Z. Li, J. M. Hale, and R. Burlacu (2019), On the portability of ML-MC as a depth discriminant for small seismic events recorded at local distances, Bull. Seismol. Soc. Am., 109, 16611673, doi:10.1785/0120190096.
  22. Ye, L., T. Lay, H. Kanamori, and K. D. Koper (2019), Reply to: Comment by Rodrigo Cienfuegos on “Rapidly Estmated Seismic Source Parameters for the 16 September 2015 Illapel, Chile, Mw 8.3 Earthquakes” by Lingling Ye, Thorne Lay, Hiroo Kanamori, and Keith D. Koper, Pure Appl. Geophys., 176,  2753, doi:10.1007/s00024-019-02214-3.
  23. Pang, G., K. D. Koper, J. M. Hale, R. Burlacu, J. Farrell, and R. B. Smith (2019), The 20172018 Maple Creek earthquake sequence in Yellowstone National Park, USA, Geophys. Res. Lett., 46, 46534663, doi:10.1029/2019GL082376.

  24. Attanayake, J., C. Thomas, V. F. Cormier, M. S. Miller, and K. Koper (2018), Irregular transition layer beneath the Earth’s inner core boundary from observations of antipodal PKIKP and PKIIKP waves, Geochem. Geophys. Geosyst., 19, 36073622, doi:10.1029/2018GC007562.
  25. Tibi, R., K. D. Koper, K. L. Pankow, and C. J. Young (2018), Discrimination of anthropogenic events and tectonic earthquakes in Utah using a quadratic function approach with local-distance amplitude ratios, Bull. Seism. Soc. Am., 108, 27882800, doi:10.1785/0120180024.
  26. Koper, K. D., K. L. Pankow, J. C. Pechmann, J. M. Hale, R. Burlacu, W. L. Yeck, H. M. Benz, R. B. Herrmann, D. T. Trugman, and P. M. Shearer (2018), Afterslip enhanced aftershock activity during the 2017 earthquake sequence near Sulphur Peak, Idaho, Geophys. Res. Lett., 45, 53525361, doi:10.1029/2018GL078196.
  27. Pang, G., K. D. Koper, M. C. Stickney, J. C. Pechmann, R. Burlacu, K. L. Pankow, S. Payne, and H. M. Benz (2018), Seismicity in the Challis, Idaho region, January 2014 – May 2017: Late aftershocks of the 1983 MS 7.3 Borah Peak earthquake, Seism. Res. Lett., 89, 13661378, doi:10.1785/0220180058.
  28. Tibi, R., K. D. Koper, K. L. Pankow, and C. J. Young (2018), Depth discrimination using Rg-to-Sg spectral amplitude ratios for seismic events in Utah recorded at local distances, Bull. Seism. Soc. Am., 108, 13551368, doi:10.1785/0120170257.

  29. Xu, Y., K. D. Koper, and R. Burlacu (2017), Lakes as a source of short-period (0.5-2 s) microseisms, J. Geophys. Res. Solid Earth, 122, 82418256, doi:10.1002/2017JB014808.
  30. Lay, T., L. Ye, K. D. Koper, and H. Kanamori (2017), Assessment of teleseismically-determined source parameters for the April 25, 2015 Mw 7.9 Gorkha, Nepal earthquake and the May 12, 2015 Mw 7.2 aftershock, Tectonophysics, 714715, 420, doi:10.1016/j.tecto.2016.05.023.
  31. Gal, M., A. M. Reading, S. P. Ellingsen, K. D. Koper, and R. Burlacu (2017), Full wavefield decomposition of high frequency secondary microseisms revelas distinct arrival azimuths for Rayleigh and Love waves, J. Geophys. Res. Solid Earth, 122, 46604675, doi:10.1002/2017JB014141.
  32. Zhang, H., K. D. Koper, K. L. Pankow, and Z. Ge (2017), Imaging the 2016 Mw 7.8 Kaikoura, New Zealand earthquake with teleseismic P waves: A cascading rupture across multiple faults, Geophys. Res. Lett., 44, 47904798, doi:10.1002/2017GL073801.
  33. Moore, J. R., K. L. Pankow, S. R. Ford, K. D. Koper, J. M. Hale, J. Aaron, and C. F. Larsen (2017), Dynamics of the Bingham Canyon rock avalanches (Utah, USA) resolved from topographic, seismic, and infrasound data, J. Geophys. Res. Earth Surf., 122, 615640, doi: 10.1002/2016JF004036.
  34. Workman, E., F.-C. Lin, and K. D. Koper (2017), Determination of Rayleigh wave ellipticity across the Earthscope Transportable Array using single-station and array-based processing of ambient seismic noise, Geophys. J. Inter., 208, 234245, doi:10.1093/gji/ggw381.

  35. Koper, K.D., J. C. Pechmann, R. Burlacu, K. L. Pankow, J. M. Hale, P. Roberson, and M. K. McCarter (2016), Magnitude based discrimination of manmade seismic events from naturally occurring earthquakes in Utah, USA, Geophys. Res. Lett., 43, 10,63810,645, doi:10.1002/2016GL070742.
  36. Moore, J. R., M. S. Thorne, K. D. Koper, J. R. Wood, K. Goddard, R. Burlacu, S. Doyle, E. Stanfield, and B. White (2016), Anthropogenic sources stimulate resonance of a natural rock bridge, Geophys. Res. Lett., 43, 96699676, doi:10.1002/2016GL070088.
  37. Lay, T., L. Ye, C. J. Ammon, A. Dunham, and K. D. Koper (2016), The 2 March 2016 Wharton Basin Mw 7.8 earthquake: High stress drop north-south strike-slip rupture in the diffuse oceanic deformation zone between the Indian and Australian Plates, Geophys. Res. Lett., 43, 79377945, doi:10.1002/2016GL069931.
  38. Liu, Q., K. D. Koper, R. Burlacu, S. Ni, F. Wang, C. Zou, Y. Wei, M. Gal, and A. Reading (2016), Source locations of teleseismic P, SV, and SH waves observed in microseisms recorded by a large aperture seismic array in China, Earth Planet. Sci. Lett., 449, 3947, doi:10.1016/j.epsl.2016.05.035.
  39. Gal, M., A. M. Reading, S. P. Ellingsen, K. D. Koper, R. Burlacu, and S. J. Gibbons (2016), Deconvolution enhanced direction of arrival estimation using 1- and 3-component seismic arrays applied to ocean induced microseisms, Geophys. J. Inter., 206, 345359, doi: 10.1093/gji/ggw150.
  40. Ye, L., T. Lay, H. Kanamori, and K. D. Koper (2016), Rapidly estimated seismic source parameters for the 16 September 2015 Illapel, Chile Mw 8.3 earthquake, Pure Appl. Geophys., 173, 321332, doi:10.1007/s00024-015-1202-y.

  41. Huang, H.-H., F. C. Lin, V. C. Tsai, and K. D. Koper (2015), High-resolution probing of inner core structure with seismic interferometry, Geophys. Res. Lett., 42, 1062210630, doi:10.1002/2015GL066390.
  42. He, X., S. Ni, L. Ye, T. Lay, Q. Liu, and K. D. Koper (2015), Rapid seismological quantification of source parameters of the 25 April 2015 Nepal earthquake, Seism. Res. Lett., 86, 15681577, doi:10.1075/0220150131.
  43. Chambers, D. J. A., K. D. Koper, K. L. Pankow, and M. K. McCarter (2015), Detecting and characterizing coal mine related seismicity in the Western U.S. using subspace methods, Geophys. J. Inter., 203, 13881399.
  44. Gal, M., A. M. Reading, S. P. Ellingsen, L. Gualtieri, K. D. Koper, R. Burlacu, H. Tkalčić, and M. A. Hemer (2015), The frequency dependence and locations of short period microseisms generated in the Southern Ocean and west Pacific, J. Geophys. Res. Solid Earth, 120, 57645781, doi:10.1002/2015JB012210.
  45. Pyle, M. L., K. D. Koper, G. G. Euler, and R. Burlacu (2015), Location of high-frequency P-wave microseismic noise in the Pacific Ocean using multiple small aperture arrays, Geophys. Res. Lett., 42, 27002708, doi:10.1002/2015GL063530.
  46. Koper, K. D., and R. Burlacu (2015), The fine structure of double-frequency microseisms recorded by seismometers in North America, J. Geophys. Res. Solid Earth, 120, 16771691, doi:10.1002/2014JB011820.

  47. Sufri, O., K. D. Koper, R. Burlacu, and B. de Foy (2014), Microseisms from Superstorm Sandy, Earth Planet. Sci. Lett., 402, 324336.
  48. Ye, L., T. Lay, K. D. Koper, R. Smalley Jr., L. Rivera, M. G. Bevis, A. F. Zakrajsek, and F. N. Teferle (2014), Complementary slip distributions of the August 4, 2003 Mw 7.6 and November 17, 2013 Mw 7.8 South Scotia Ridge earthquakes, Earth Planet. Sci. Lett., 401, 215226.
  49. Gal, M., A. M. Reading, S. P. Ellingsen, K. D. Koper, S. J. Gibbons, and S. P. Näsholm (2014), Improved implementation of the fk and Capon methods for array analysis of seismic noise, Geophys. J. Inter., 198, 10451054.
  50. Kubacki, T., K. D. Koper, K. L. Pankow, and M. K. McCarter (2014), Changes in mining induced seismicity before and after the 2007 Crandall Canyon mine collapse, J. Geophys. Res. Solid Earth, 119, 48764889, doi:10.1002/2014JB011037.
  51. Reading, A. M., K. D. Koper, M. Gal, L. S. Graham, H. Tkalčić, and M. A. Hemer (2014), Dominant seismic noise sources in the Southern Ocean and West Pacific, 2000–2012, recorded at the Warramunga Seismic Array, Australia, Geophys. Res. Lett., 41, 34553463, doi:10.1002/2014GL060073.
  52. Pankow, K. L., J. R. Moore, J. M. Hale, K. D. Koper, T. M. Kubacki, K. M. Whidden, and M. K. McCarter (2014), Massive landslide at Utah copper mine generates wealth of geophysical data, GSA Today, 24, 49, doi:10.1130/GSATG191A.1.

  53. Yue, H., T. Lay, J. T. Freymueller, K. Ding, L. Rivera, N. A. Ruppert, and K. D. Koper (2013), Supershear rupture of the 5 January 2013 Craig, Alaska (Mw 7.5) earthquake, J. Geophys. Res., 118, 59035919, doi:10.1002/2013JB010594.
  54. Ye, L., T. Lay, H. Kanamori, and K. D. Koper (2013), Energy release of the 2013 Mw 8.3 Sea of Okhotsk earthquake and deep slab stress heterogeneity, Science, 341, 13801384.
  55. Thomas, G., K. D. Koper, R. Burlacu, and D. Drobeck (2013), A model of ambient seismic noise recorded by the Utah regional network of strong-motion seismometers, Seism. Res. Lett., 84, 759771, doi:10.1785/0220130026.
  56. Koper, K. D., and C. J. Ammon (2013), Planning a global array of broadband seismic arrays, EOS Trans., AGU, 94, p. 300.
  57. Lay, T., L. Ye, H. Kanamori, Y. Yamazaki, K. F. Cheung, K. Kwong, and K. D. Koper (2013), The October 28, 2012 Mw 7.8 Haida Gwaii underthrusting earthquake and tsunami: Slip partitioning along the Queen Charlotte Fault transpressional plate boundary, Earth Planet. Sci. Lett., 375, 5770.

  58. Yue, H., T. Lay, and K. D. Koper (2012), En echelon and orthogonal fault ruptures of the 11 April 2012 great intraplate earthquakes, Nature, 490, 245249.
  59. Lay, T., H. Kanamori, C. J. Ammon, K. D. Koper, A. R. Hutko, L. Ye, H. Yue, and T. M. Rushing (2012), Depth-varying rupture properties of subduction zone megathrust faults, J. Geophys. Res., 117, B04311, doi:10.1029/2011JB009133.
  60. Sufri, O., K. D. Koper, and T. Lay (2012), Along-dip seismic radiation segmentation during the 2007 Mw 8.0 Pisco, Peru earthquake, Geophys. Res. Lett., 39, L08311, doi:10.1029/2012GL051316.
  61. Koper, K. D., A. R. Hutko, T. Lay, and O. Sufri (2012), Imaging short-period seismic radiation from the 27 February 2010 Chile (Mw 8.8) earthquake by back-projection of P, PP, and PKIKP waves, J. Geophys. Res., 117, B02308, doi:10.1029/2011JB008576.

  62. Koper, K. D., A. R. Hutko, T. Lay, C. J. Ammon, and H. Kanamori (2011), Frequency-dependent rupture process of the 2011 Mw 9.0 Tohoku earthquake: Comparison of short-period P wave backprojection images and broadband seismic rupture models, Earth Planets Space, 63, 599602.
  63. Koper, K. D., A. R. Hutko, and T. Lay (2011), Along-dip variation of teleseismic short-period radiation from the 11 March 2011 Tohoku earthquake (Mw 9.0), Geophys. Res. Lett., 38, L21309, doi:10.1029/2011GL049689.

  64. Koper K. D., and V. L. Hawley (2010), Frequency dependent polarization analysis of ambient seismic noise recorded at a broadband seismometer in the Central United States, Earthquake Science, 23, 439447.
  65. Xu, Y., R. B. Herrmann, and K. D. Koper (2010), Source parameters of regional small-to-moderate earthquakes in the Yunnan-Sichuan region of China, Bull. Seism. Soc. Am., 100, 25182531.
  66. Lay T., C. J. Ammon, H. Kanamori H., L. Rivera, K. D. Koper, and A. R. Hutko (2010), The 2009 Samoa-Tonga great earthquake triggered doublet, Nature, 466, 964968.
  67. Lay, T., C. J. Ammon, H. Kanamori, K. D. Koper, O. Sufri, and A. R. Hutko (2010), Teleseismic inversion for rupture process of the 27 February 2010 Chile (Mw 8.8) earthquake, Geophys. Res. Lett., 37, L13301, doi:10.1029/2010GL043379.
  68. Koper, K. D., K. Seats, and H. M. Benz (2010), On the composition of Earth’s short period seismic noise field, Bull. Seism. Soc. Am., 100, 606617.
  69. D’Amico, S., K. D. Koper, R. B. Herrmann, A. Akinci, and L. Malagnini (2010), Imaging the rupture of the Mw 6.3 April 6, 2009 L’Aquila, Italy earthquake using back-projection of teleseismic P-waves, Geophys. Res. Lett., 37, L03301, doi:10.1029/2009GL042156.

  70. Koper, K. D., B. de Foy, and H. M. Benz (2009), Composition and variation of noise recorded at the Yellowknife seismic array, 1991-2007, J. Geophys. Res., 114, B10310, doi:10.1029/2009JB006307.
  71. Xu, Y., and K. D. Koper (2009), Detection of a ULVZ at the base of the mantle beneath the Northwest Pacific, Geophys. Res. Lett., 36, L17301,doi:10.1029/2009GL039387.
  72. Koper, K. D., and A. Fatehi (2009), Array analysis of regional distance P-coda in south Asia, Bull. Seism. Soc. Am., 99, 25092522.
  73. Xu, Y., K. D. Koper, O. Sufri, L. Zhu, and A. R. Hutko (2009), Rupture imaging of the Mw 7.9 12 May 2008 Wenchuan earthquake from back projection of teleseismic P waves, Geochem. Geophys. Geosyst., 10, Q04006, doi:10.1029/2008GC002335.

  74. Koper, K. D., R. B. Herrmann, and H. M. Benz (2008), Overview of open seismic data from the North Korea event of 9 October 2006, Seism. Res. Lett., 79, 178185.
  75. Zou, Z., K. D. Koper, and V. F. Cormier (2008), The structure of the base of the outer core inferred from seismic waves diffracted around the inner core, J. Geophys. Res., 113, B05314, doi:10.1029/2007JB005316.
  76. Peng, Z., K. D. Koper, J. E. Vidale, F. Leyton, and P. Shearer (2008), Inner-core fine-scale structure from scattered waves recorded by LASA, J. Geophys. Res., 113, B0931, doi:10.1029/2007JB005412.
  77. Koper, K. D., and B. de Foy (2008), Seasonal anisotropy in short-period seismic noise recorded in South Asia, Bull. Seism. Soc. Am., 98, 30333045.

  78. Zou, Z., F. Leyton, and K. D. Koper (2007), Partial melt in the lowermost mantle near the base of a plume, Geophys. J. Int., 168, 809817.
  79. Leyton, F., and K. D. Koper (2007), Using PKiKP coda to determine inner core structure: 1. Synthesis of coda envelopes using single-scattering theories, J. Geophys. Res., 112, B05316, doi:10.1029/2006JB004369.
  80. Leyton, F., and K. D. Koper (2007), Using PKiKP coda to determine inner core structure: 2. Determination of QC, J. Geophys. Res., 112, B05317, doi:10.1029/2006JB004370.
  81. Flanagan, M., S. C. Myers, and K. D. Koper (2007), Regional traveltime uncertainty and seismic location improvement using a three-dimensional a priori velocity model, Bull. Seism. Soc. Am., 97, 804825.

  82. Koper, K. D., and M. Dombrovskaya (2005), Seismic properties of the inner core boundary from PKiKP/P amplitude ratios, Earth Planet. Sci. Lett., 237, 680694.
  83. Leyton, F., K. D. Koper, L. Zhu, and M. Dombrovskaya (2005), On the lack of seismic discontinuities in the inner core, Geophys. J. Inter., 162, 779786.

  84. Koper, K. D., and M. L. Pyle (2004), Observations of PKiKP/PcP amplitude ratios and implications for Earth structure at the boundaries of the liquid core, J. Geophys. Res., 109, B03301, doi:10.1029/2003JB002750.
  85. Koper, K. D., J. M. Franks, and M. Dombrovskaya (2004), Evidence for small-scale heterogeneity in Earth’s inner core from a global study of PKiKP coda waves, Earth Planet. Sci. Lett., 228, 221241.

  86. Koper, K. D., M. L. Pyle, and J. M. Franks (2003), Constraints on aspherical core structure from PKiKP-PcP differential travel times, J. Geophys. Res., 108 (B3), 2168, doi:10.1029/2002JB001995.
  87. Koper, K. D., T. C. Wallace, and R. C. Aster (2003), Seismic recordings of the Carlsbad, New Mexico pipeline explosion of 19 August 2000, Bull. Seism. Soc. Am., 93, 14271432.
  88. Robertson Maurice, S. D., D. A. Wiens, K. D. Koper, and E. Vera (2003), Crustal and upper mantle structure of southernmost South America inferred from regional waveform inversion, J. Geophys. Res., 108 (B1), 2038, doi:10.1029/2002JB001828.

  89. Koper, K. D., T. C. Wallace, R. E. Reinke, and J. A. Leverette (2002), Empirical scaling laws for truck bomb explosions based on seismic and acoustic data, Bull. Seism. Soc. Am., 92, 527542.

  90. Al-Eqabi, G. I., K. D. Koper, and M. E. Wysession (2001), Source characterization of Nevada Test Site explosions and Western U.S. earthquakes using Lg waves: Implications for regional source discrimination, Bull. Seism. Soc. Am., 91, 140153.
  91. Koper, K. D., T. C. Wallace, S. R. Taylor, and H. E. Hartse (2001), Forensic seismology and the sinking of the Kursk, EOS Trans., AGU, 82, pp. 37,4546.
  92. Koper, K. D., T. C. Wallace, S. R. Taylor, and H. E. Hartse (2001), Reply to Comment by J. Northrop, Forum, EOS Trans., AGU, 82, pp. 244.

  93. Koper, K. D. and D. A. Wiens (2000), The waveguide effect of metastable olivine in slabs, Geophys. Res. Lett., 27, 573576.

  94. Koper, K. D., T. C. Wallace, and D. Hollnack (1999), Seismic analysis of the 7 August 1998 truck-bomb blast at the American embassy in Nairobi, Kenya, Seism. Res. Lett., 70, 512521.
  95. Koper, K. D., D. A. Wiens, L. M. Dorman, J. A. Hildebrand, and S. C. Webb (1999), Constraints on the origin of slab and mantle wedge anomalies in Tonga from the ratio of S to P velocities, J. Geophys. Res., 104, 1508915104.
  96. Koper, K. D., M. E. Wysession, and D. A. Wiens (1999), Multimodal function optimization with a niching genetic algorithm: A seismological example, Bull. Seism. Soc. Am., 89, 978988.

  97. Koper, K. D., D. A. Wiens, L. M. Dorman, J. A. Hildebrand, and S. C. Webb (1998), Modeling the Tonga slab: Can travel time data resolve a metastable olivine wedge?, J. Geophys. Res., 103, 3007930100.