Near-field surface motions excited by radiation from a slip zone of arbitrary shape.

J. G. Harris, J. D. Achenbach

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A ray method is used to calculate the near-field ground acceleration excited by sliding on a fault plane. The sliding action is modeled by a propagating mode II crack. The crack is planar and it has an edge of arbitrary but smooth curvature. Attention is focused upon the case in which the expanding crack abruptly changes its rate of growth to a slower one. This change in propagation speed causes a burst of wave motion to be emitted. The interaction of the high-frequency (or wave front) part of the emitted acceleration pulse with the free surface is studied. The near field, where body waves dominate the wave motion at the surface, is considered in some detail. -Authors

Original languageEnglish (US)
Pages (from-to)9352-9356
Number of pages5
JournalJournal of Geophysical Research
Issue numberB10
StatePublished - 1981

ASJC Scopus subject areas

  • Forestry
  • Aquatic Science
  • Soil Science
  • Water Science and Technology
  • Earth-Surface Processes
  • Geochemistry and Petrology
  • Geophysics
  • Oceanography
  • Palaeontology
  • Ecology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Atmospheric Science


Dive into the research topics of 'Near-field surface motions excited by radiation from a slip zone of arbitrary shape.'. Together they form a unique fingerprint.

Cite this