Surface deformation and energy release rates for constant stress drop slip zones in an elastic half-space

M. Wu, J. W. Rudnicki, C. H. Kuo, L. M. Keer

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Free surface displacements, stress intensity factors, and energy release rates are calculated for planar slip zones in an elastic half-space subjected to a prescribed shear stress drop. Although the method can treat arbitrarily shaped planar zones and distributed stress drops, for simplicity, results are presented only for circular and elliptic zones and uniform stress drops. Calculations of the stress intensity factors and energy release rates for various geometries indicate that solutions for the half-space differ by less than 10% from those in the full space if the distance from the slip zone center to the free surface is greater than the downdip width of the slip zone. As example application, these solutions are used to reexamine the coseismic geodetic data from three earthquakes: 1966 Parkfield, 1983 Borah Peak, and 1987 Whittier Narrows. -from Authors

Original languageEnglish (US)
Pages (from-to)16,509-16,524
JournalJournal of Geophysical Research
Volume96
Issue numberB10
StatePublished - Jan 1 1991

ASJC Scopus subject areas

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

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