Open AccessA Procedure for Modelling Shallow Dislocation Sources *
Author(s) -
Langston Charles A.,
Helmberger Donald V.
Publication year - 1975
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1975.tb05854.x
Subject(s) - dislocation , geology , shear (geology) , waveform , shear stress , mathematical analysis , geometry , geodesy , mathematics , mechanics , physics , petrology , quantum mechanics , voltage , condensed matter physics
Summary. Expressions for displacements on the surface of a layered half‐space due to an arbitrary oriented shear dislocation are given in terms of generalized ray expansions. Useful approximations of these expressions for shallow events as recorded at teleseismic distances for realistic earth models are presented. The results of this procedure are used to generate synthetic P , SV and SH waveforms for various assumptions of stress‐drop.