Abstract
Numerical results are obtained for the static surface displacements, strains and tilts of a homogeneous, isotropic, non-gravitating, elastic sphere due to finite dip-slip and strike-slip faults. The theory is applied to strain observations from the Alaska earthquake of March 28, 1964. It is shown that the theoretical values are within an order of magnitude of the observed values and are of the correct sign.
The method can be extended to derive the displacements everywhere within the sphere. These are required for the determination of the changes in the components of the inertia tensor in the earth due to major earthquakes which lead to a spherical theory for the calculation of the contribution of earthquakes to the excitation of the Chandler wobble and the secular polar shift.
During a major part of the investigation, this author was a Weizmann Institute fellow.
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© 1970 D. Reidel Publishing Company, Dordrecht, Holland
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Ben-Menahem, A., Singh, S.J. (1970). Deformation of a Spherical Earth Model by Finite Dislocations. In: Mansinha, L., Smylie, D.E., Beck, A.E. (eds) Earthquake Displacement Fields and the Rotation of the Earth. Astrophysics and Space Science Library, vol 20. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3308-4_3
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DOI: https://doi.org/10.1007/978-94-010-3308-4_3
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