Abstract
Preseismic lithospheric deformation at a subduction zone can be modelled as dip-slip dislocation on an inclined fault or as flexure of a thin plate. Both these models predict a region of positive topography known as forebulge or outer rise. By matching the location and the magnitude of the forebulge, we derive useful relations between the dip-slip fault parameters and the plate parameters. In particular, we determine the width of a long dip-slip fault of given dip corresponding to a semi-infinite plate of given thickness. The displacement profiles of the two models are also compared.
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Singh, S.J., Singh, M. A note on the relationship between dip-slip fault parameters and plate parameters in the two-dimensional modelling of preseismic deformation. Proc. Indian Acad. Sci. (Earth Planet Sci.) 107, 155–160 (1998). https://doi.org/10.1007/BF02840466
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DOI: https://doi.org/10.1007/BF02840466