1986
DOI: 10.1111/j.1365-246x.1986.tb01969.x
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Application of the finite difference method in seismic source and wave diffraction simulation

Abstract: The simulation of seismic sources and the interaction o f the resulting elastic waves and topography is discussed for an explosive source in a half-space and in a half-space containing a slot or a step using the finite difference method. Displacement fields (numerical visualisations), synthetic seismograms, relative intensities and wave spectral analyses are the main data produced.

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Cited by 11 publications
(8 citation statements)
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References 11 publications
(6 reference statements)
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“…The decomposition of the elastic wavefield into separate P-and S-wave potential fields opens up a convenient way of representing seismic sources numerically, in particular explosive sources. Hong & Bond (1986) used an area source to simulate an explosive source. With the displacement-potential formulation, a source with only P-wave potential simulates an extensional/compressional explosive source whereas a source with only S-wave potential simulates a unidirectional shear source.…”
Section: Source Excitationmentioning
confidence: 99%
“…The decomposition of the elastic wavefield into separate P-and S-wave potential fields opens up a convenient way of representing seismic sources numerically, in particular explosive sources. Hong & Bond (1986) used an area source to simulate an explosive source. With the displacement-potential formulation, a source with only P-wave potential simulates an extensional/compressional explosive source whereas a source with only S-wave potential simulates a unidirectional shear source.…”
Section: Source Excitationmentioning
confidence: 99%
“…So far most applications of finite differences have been limited to simple geometric shapes. For instance, much earlier work deals with restrictive models in which the boundaries are either parallel to the coordinates or permit only a 45 degree ramp (Alterman and Karal, 1968;Loewenthal, 1970, 1972;Munasinghe and Farnell, 1973;Ilan et al, 1975Ilan et al, , 1979Ilan, 1978;Fuyuki and Matsumoto, 1980;Fuyuki and Nakano, 1984;Hong and Bond, 1986). Boore et al (1981) simulated vertically incident body waves impinging on a 45 degree ramp by using the same formulation as in Ilan et al (1975).…”
Section: Introductionmentioning
confidence: 97%
“…Source functions for both point and finite elastic dislocations can be modelled through specification of equivalent body forces (cf. Burridge, Lapwood & Knopoff 1964) implemented in finite-difference form (Alterman & Aboudi 1970;Aboudi 1971;Hong & Bond 1986). A propagating rupture is easily simulated by sequentially initiating a series of point sources oriented parallel to the fault, with displacements parallel to the slip direction.…”
Section: Theorymentioning
confidence: 99%
“…The latter include full waveform modelling (cf. Langston & Helmberger 1975;Archuleta 1976;Hong & Bond 1986;Benz & Smith 1987) and inversion (cf. Stump & Johnson 1977;Spudich 1980).…”
Section: Introductionmentioning
confidence: 99%