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Radiation of Seismic Surface-Waves from Finite Moving Sources


Ben-Menahem, Ari (1961) Radiation of Seismic Surface-Waves from Finite Moving Sources. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/14NZ-KT62.


A theory is proposed for the propagation of seismic surface-waves from finite moving sources. The method consists of obtaining, in the first place, basic solutions for surface displacements from directional sources. These solutions are integrated to obtain the effect of a moving fault with arbitrary dip angle. Displacements are evaluated for Rayleigh and Love-waves, at long ranges. It is shown that the dimensions of the source and the speed of rupture play an important role in the wave-pattern and cannot be ignored whenever the dimensions of the source are of the order of the radiation's dominant-wave-length. It is demonstrated how this theory may lead to a derivation of the velocity of rupture and the fault-length from seismic records of a single station. Evidence is furnished both from two-dimensional model experiments and the Chilean Earthquake of May 1960.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Geophysics)
Degree Grantor:California Institute of Technology
Division:Geological and Planetary Sciences
Major Option:Geophysics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Press, Frank
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1961
Record Number:CaltechETD:etd-03172006-103207
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:982
Deposited By: Imported from ETD-db
Deposited On:17 Mar 2006
Last Modified:10 Nov 2023 22:58

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