Open AccessDynamic stress variations due to shear faults in a plane‐layered medium
Author(s) -
Cotton Fabrice,
Coutant Olivier
Publication year - 1997
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1997.tb05328.x
Subject(s) - fault plane , computation , stress field , directivity , dynamic stress , geology , wavenumber , cauchy stress tensor , shear (geology) , slip (aerodynamics) , stress (linguistics) , shear stress , seismology , shear waves , passive seismic , geometry , mechanics , structural engineering , fault (geology) , mathematical analysis , physics , dynamic loading , mathematics , computer science , optics , finite element method , engineering , algorithm , petrology , philosophy , linguistics , telecommunications , thermodynamics , antenna (radio)
SUMMARY A complete set of expressions is presented for the computation of elastic dynamic stress in plane‐layered media. We use a discrete‐wavenumber reflectivity method to compute the stress field radiated by arbitrary moment‐tensor sources. The expressions derived here represent an interesting tool for both‐the observational and theoretical analysis of dynamic stress changes associated with earthquake phenomena. Dynamic stress changes associated with a strike‐slip fault having unilateral rupture are shown. This modelling, which is similar to the 1992 Landers California earthquake, illustrates the effects of distance, directivity and depth on transient stress changes.