Location of Love-to-Rayleigh conversion due to lateral heterogeneity or azimuthal anisotropy in the upper mantle

Geophysical Research Letters

Volumn 25, Issue 7, 1998, Pages 1067-1070

  Kobayashi, Reiji ^a   Nakanishi, Ichiro ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; EARTHQUAKES; SPECTRUM ANALYSIS; SURFACE WAVES; TECTONICS; GEOPHYSICS;

AZIMUTHAL ANISOTROPY; LOVE WAVES; RAYLEIGH WAVES; WAVE CONVERSION; BROAD-BAND SEISMOMETERS; CALIFORNIA , USA; GROUP VELOCITIES; LATERAL HETEROGENEITY; LOW-FREQUENCY; STATION NETWORK; UPPER MANTLE;

SEISMOLOGY; LOCATION;

ANISOTROPY; LOVE WAVE; MANTLE; RAYLEIGH WAVE; SEISMIC VELOCITY; WAVE CONVERSION;

EID: 0032051419     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/98GL00651     Document Type: Article

References (20)

1. Dziewonski, A., S. Bloch, and M. Landisman, A technique for the analysis of transient seismic signals, Bull. Seis. Soc. Am., 59, 427-444, 1969.
2. Dziewonski, A. M., and D. L. Anderson, Preliminary reference Earth model, Phys. Earth Planet. Inter., 25, 297-356, 1981.
3. Dziewonski, A. M., G. Ekström, and M. P. Salganik, Centroid-moment tensor solutions for July-September 1991, Phys. Earth Planet. Inter., 72, 1-11, 1992.
4. Hanakago, Y., I. Nakanishi, T. Moriya, and M. Kasahara, Determination of source mechanisms of near earthquakes from long-period seismic waves (in Japanese with English abstract), Zisin (J. Seism. Soc. Japan) 2, 43, 213-225, 1990.
5. Kawasaki, I., and K. Koketsu, Rayleigh-Love wave coupling in an azimuthally anisotropic medium, J. Phys. Earth, 38, 361-390, 1990.
6. Kobayashi, R., I. Nakanishi, and S. Tsuboi, Polarization anomalies of surface waves recorded by a broadband seismometer network in Hokkaido, Japan, J. Phys. Earth, in press, 1998.
7. Nakanishi I., Long-period moment tensor determination for regional earthquakes by a local broad-band seismograph array in Hokkaido, Japan, Proc. Int. Sym. on Earthquake Disaster Prevention, Mexico City, 3, 70-80, 1992a.
8. Nakanishi I., Rayleigh waves guided by sea-trench topography, Geophys. Res. Lett., 19, 2385-2388, 1992b.
9. Nakanishi, I., and D. L. Anderson, Measurements of mantle wave velocities and inversion for lateral heterogeneity and anisotropy-II. Analysis by the single-station method. Geophys. J. R. astr. Soc., 78, 573-617, 1984.
10. Nakanishi, I., Y. Hanakago, T. Moriya, and M. Kasahara, Performance test on long-period moment tensor determination for near earthquakes by a sparse local network, Geophys. Res. Lett., 18, 223-226, 1991.
11. Nataf, H.-C., I. Nakanishi, and D. L. Anderson, Measurements of mantle wave velocities and inversion for lateral heterogeneities and anisotropy 3. Inversion, J. Geophys. Res., 91, 7261-7307, 1986.
12. Park, J., and Y. Yu, Anisotropy and coupled free oscillations: simplified models and surface wave observations, Geophys. J. Int., 110, 401-420, 1992.
13. Suetsugu, D., and I. Nakanishi, Three-dimensional velocity map of the upper mantle beneath the Pacific Ocean as determined from Rayleigh wave dispersion, Phys. Earth Planet. Inter., 47, 205-229, 1987a.
14. Suetsugu, D., and I. Nakanishi, Regional and azimuthal dependence of phase velocities of mantle Rayleigh waves in the Pacific Ocean, Phys. Earth Planet. Inter., 47, 230-245, 1987b.
15. Tanimoto, T., and D. L. Anderson, Lateral Heterogeneity and Azimuthal Anisotropy of the Upper Mantle: Love and Rayleigh Waves 100-250 s, J. Geophys. Res., 90, 1842-1858, 1985.
16. Tsuboi, S., and J. Um, Anomalous amplification of the Earth's normal modes near the epicenter due to lateral heterogeneity, Geophys. Res. Lett., 20, 2379-2382, 1993.
17. Woodhouse, J. H., and F. A. Dahlen, The effect of a general aspherical perturbation on the free oscillations of the Earth, Geophys. J. R. astr. Soc., 53, 335-354, 1978.
18. Woodhouse, J. H., and A. M. Dziewonski, Mapping the upper mantle: Three-dimensional modeling of Earth structure by inversion of seismic waveforms, J. Geophys. Res., 89, 5953-5986, 1984.
19. Woodhouse, J. H., and T. P. Girnius, Surface waves and free oscillations in a regionalized earth model, Geophys. J. R. astr. Soc., 68, 653-673, 1982.
20. Yu, Y., and J. Park, Upper mantle anisotropy and coupled-mode long-period surface waves, Geophys. J. Int., 114, 473-489, 1993.