Guided waves at subduction zones: Dependencies on slab geometry, receiver locations and earthquake sources

Geophysical Journal International

Volumn 167, Issue 2, 2006, Pages 693-704

  Martin, S ^a   Rietbrock, A ^a  

^a UNIVERSITY OF LIVERPOOL   (United Kingdom)

Author keywords

Finite difference method; Guidedwaves; Low velocitylayer; Oceaniccrust; Subductionzone

Indexed keywords

FINITE DIFFERENCE METHOD; LOW VELOCITY ZONE; OCEANIC CRUST; SEISMIC VELOCITY; SEISMIC WAVE; SLAB; SUBDUCTION ZONE;

CHILE; PERU; SOUTH AMERICA;

EID: 33750715427     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2006.02963.x     Document Type: Article

References (48)

1. Abers, G.A., 2000. Hydrated subducted crust at 100-250 km depth, Earth planet. Sci. Lett., 176, 70-1-4, doi 10.1029/2002GL015649
2. Abers, G.A., 2005. Seismic low-velocity layer at the top of subducting slabs: Observations, predictions, and systematics, Phys. Earth planet. Inter., 149, 7-29.
3. Abers, G.A. & Sarker, R., 1996. Dispersion of regional body waves at 100-150 km depth beneath Alaska: In situ constraints on metamorphism of subducted crust, Geophys. Res. Lett., 23, 1171-1174.
4. Abers, G.A., Plank, T. & Hacker, B.R., 2003. The wet Nicaraguan slab, Geophys. Res. Lett., 30, 323-330.
5. Amundsen, L. & Reitan, A., 1994. The relationship between 2-D and 3-D wave propagation, 64th Annual Internat. Mtg., Soc, Expl. Geophys., Expanded Abstracts, 94, 1378-1381.
6. Ansell, J.H. & Gubbins, D., 1986. Anomalous high-frequency wave propagation from the Tonga-Kermadec seismic zone to New Zealand, Geophys. J. R. astr. Soc., 85, 93-106.
7. Ben-Zion, Y., 1998. Properties of seismic fault zone waves and their utility for imaging low velocity structures, J. geophys. Res., 103, 12567-12585.
8. Bock, G., Schurr, B. & Asch, G., 2000. High-resolution image of the oceanic Moho in the subducting Nazca plate from P-S converted waves, Geophys. Res. Lett., 27, 3929-3932.
9. Brune, J.N., 1970. Tectonic stress and the spectra of seismic shear waves from earthquakes, J. geophys. Res., 75, 4997-5009.
10. Brune, J.N., 1971. Corrections, J. geophys. Res., 76, 5002.
11. Cassidy, J.F. & Waldhauser, F., 2003. Evidence for both crustal and mantle earthquakes in the subducting Juan de Fuca plate, Geophys. Res. Lett., 30, 1095, doi 10.1029/2002GL015511
12. Coutant, O., Virieux, J. & Zollo, A., 1995. Numerical source implementation in a 2D finite difference scheme for wave propagation, Bull. seism. Soc. Am., 85, 1507-1512.
13. England, P., Engdahl, R. & Thatcher, W., 2004. Systematic variation in the depth of slabs beneath arc volcanoes, Geophys. J. Int., 156, 377-408, doi 10.1111/j.1365-246X.2003.02132.x
14. Fuchs, K. & Müller, G., 1971. Computation of synthetic seismograms with the reflectivity method and comparison with observations, Geophys. J. R. astr. Soc., 23, 417-433.
15. Fukao, Y., Hori, S. & Ukawa, M., 1983. A seismological constraint on the depth of basalt-eclogite transition in a subducting oceanic crust, Nature, 303, 413-415.
16. Graeber, F.M. & Asch, G., 1999. Three-dimensional models of P wave velocity and P-to-S velocity ratio in the southern central Andes by simultaneous inversion of local earthquake data, J. geophys. Res., 104, 20237-20256.
17. Haberland, C. & Rietbrock, A., 2001. Attenuation tomography in the Western Central Andes: A detailed insight into the structure of a magmatic arc, J. geophys. Res., 106, 11151-11167.
18. Hacker, B.R., Peacock, S.M., Abers, G.A. & Holloway, S.D., 2003a. Subduction factory, 1, Theoretical mineralogy, densities, seismic wave speeds and H-20 contents, J. geophys. Res., 108 (B1), doi 10.1029/ 2001JB001127
19. Hacker, B.R., Peacock, S.M., Abers, G.A. & Holloway, S.D., 2003b. Subduction factory, 2, Are intermediate-depth earthquakes in subducting slabs linked to metamorphic dehydration reactions?, J. geophys. Res., 108 (B1), doi 10.1029/2001JB001129
20. Hashida, T., 1989. 3-Dimensional seismic attenuation structure beneath the Japanese islands and its tectonic and thermal implications, Tectonophysics, 159, 163-180.
21. Helffrich, G. & Abers, G.A., 1997. Slab low-velocity layer in the eastern Aleutian subduction zone, Geophys. J. Int., 130, 640-648.
22. Hori, S., 1990. Seismic waves guided by untransformed oceanic crust subducting into the mantle: The case of the Kanto district, central Japan, Tectonophysics, 176, 355-376.
23. Hurukawa, N. & Imoto, M., 1992. Subducting oceanic crusts of the Phillipine Sea and Pacific Plates, Geophys. J. Int., 109, 693-652.
24. Igel, H., Y. Ben-Zion, & Leary, P.C., 1997. Simulation of SH - and P-SV -wave propagation in fault zones, Geophys. J. Int., 128, 533-546.
25. Igel, H., Nissen-Meyer, T. & Jahnke, G., 2002. Wavepropagation in 3D spherical sections: Effects of subduction zones, Phys. Earth planet. Inter., 132, 219-234.
26. Iidaka, T. & Obara, K., 1993. The upper boundary of the subducting pacific plate estimated from ScSp waves beneath the Kanto region, Japan, J. Phys. Earth, 41, 103-108.
27. Jahnke, G., Igel, H. & Ben-Zion, Z., 2002. Three-dimensional calculations of seismic fault zone waves in modestly irregular structures, Geophys. J. Int., 151, 416-426.
28. Kennett, B.L.N. & Engdahl, E.R., 1991. Traveltimes for global earthquake location and phase identification, Geophys. J. Int., 105, 429-465.
29. Kirby, S., Engdahl, E.R. & Denlinger, R., 1996. Intermediate-depth intraslab earthquakes and arc volcanism as physical expressions of crustal and uppermost mantle metamorphism in subducting slabs, in Subduction Top to Bottom, pp. 195-214, eds Bebout, G.E., Scholl, D.W., Kirby, S.H. & Platt, J.P., Geophysical Monograph 96, The AGU Books Board.
30. Lay, T. & Wallace, T.C., 1995. Modern Global Seismology, Academic Press, London.
31. Levander, A.R., 1988. Fourth order finite difference P-SV-seismograms, Geophysics, 53, 1425-1436.
32. Lin, C.H., Huang, B.S. & Rau, R.J., 1999. Seismological evidence for a low-velocity layer within the subducted slab of southern Taiwan, Earth planet. Sci. Lett., 174, 231-240.
33. Martin, S., Rietbrock, A., Haberland, C. & Asch, G., 2003. Guided waves propagating in subducted oceanic crust, J. geophys. Res., 108, doi 10.1029/2004GL019610
34. Matsuzawa, T., Umino, N., Hasegawa, A. & Takagi, A., 1987. Estimation of thickness of a low-velocity layer at the surface of the descending oceanic plate beneath the northeastern Japan arc by using synthesized PS-wave, Thoku Geophys. J., 31, 19-28.
35. Oda, H. & Douzen, T., 2001. New evidence for a low-velocity layer on the subducting Phillipine Sea plate in southwest Japan, Tectonophysics, 332, 347-358.
36. Oda, H., Tanaka, T. & Seya, K., 1990. Subducting oceanic crust on the Philippine sea plate in southwest Japan, Tectonophysics, 172, 175-189.
37. Randal, C.J., 1989. Absorbing boundary condition for the elastic wave equation: Velocity stress formulation, Geophysics, 54, 1141-1152.
38. Rietbrock, A. & Waldhauser, F., 2004. A narrowly spaced double-seismic zone in the subducting Nazca plate, Geophys. Res. Lett., 31, doi 10.1029/2004GL019610
39. Ringwood, A.E., 1972. Phase transformations and mantle dynamics, Earth planet. Sci. Lett., 14, 233-241.
40. Rudloff, A., 1998. Bestimmung von Herdflächenlösungen und detaillierte Spannungsinversion aus ausgewählten Ereignissen des seismologischen Netzes PISCO'94 (Nord-Chile), Sci. Tech. Rep. STR98/01, GeoForschungsZentr. Potsdam, Potsdam, Germany.
41. Schmidt, M.W. & Poli, S., 1998. Experimentally based water budgets for dehydrating slabs and consequences for arc magma generation, Earth planet. Sci. Lett., 163, 361-379.
42. Snoke, J.A., Sacks, I.S. & Okada, H., 1978. Determination of the subducting lithosphere boundary by use of converted phases, Bull. seism. Soc. Am., 67, 1051-1060.
43. Schurr, B., Asch, G., Rietbrock, A., Trumbull, R. & Haberland, C., 2003. Complex patterns of fluid and melt transport in the central Andean subduction zone revealed by attenuation tomography, Earth planet. Sci. Lett., 215, 105-119.
44. Tatsumi, Y., Ito, K. & Goto, A., 1994. Elastic wave velocities in isochemical granulite and amphibolite: Origin of a low-velocity layer at the slab/mantle wedge interface, Geophys. Res. Lett., 21, 17-20.
45. Virieux, J., 1984. SH-wave propagation in heterogeneous media: Velocity stress finite difference method, Geophysics, 49, 1933-1957.
46. Virieux, J., 1986. P-SV-wave propagation in heterogeneous media: velocity stress finite difference method, Geophysics, 51, 889-901.
47. Wang, R., 1999. A simple orthonormalization method for stable and efficient computation of Green's functions, Bull. seism. Soc. Am., 89, 733-741.
48. Yuan, X., Sobolev, S.V., Kind, R., Oncken, O. & Group, A.S., 2000. Subduction and collision processes in the Central Andes constrained by converted seismic phases, Nature, 408, 958-961.