Multicycle dynamics of fault systems and static and dynamic triggering of earthquakes

Olsen-Kettle, L. M., Weatherley, D., Gross, L. and Muhlhaus, H.-B. (2007). Multicycle dynamics of fault systems and static and dynamic triggering of earthquakes. In: Proceedings of AAES 2007. Australian Earthquake Engineering Society Conference (AAES, 2007), Wollongong, NSW, Australia, (). 23-25 November 2007.

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Author Olsen-Kettle, L. M.
Weatherley, D.
Gross, L.
Muhlhaus, H.-B.
Title of paper Multicycle dynamics of fault systems and static and dynamic triggering of earthquakes
Phonetic title of paper Proceedings of the Australian Earthquake Engineering Society conference, 2007
Conference name Australian Earthquake Engineering Society Conference (AAES, 2007)
Conference location Wollongong, NSW, Australia
Conference dates 23-25 November 2007
Proceedings title Proceedings of AAES 2007
Place of Publication McKinnon, Vic., Australia
Publisher The Australian Earthquake Engineering Society
Publication Year 2007
Year available 2008
Sub-type Fully published paper
Total pages 8
Collection year 2008
Language eng
Abstract/Summary Dynamic simulations of rupture propagation and multiple earthquake cycles for varying fault geometries are presented. We investigate the role of both dynamic and static stress changes on earthquake triggering. Dynamic stress triggering of earthquakes is caused by the passage of seismic waves, whereas static stress triggering is due to net slippage on a fault resulting from an earthquake. Static stress changes represented by a Coulomb failure function and its relationship to seismicity rate change is a relatively well-known mechanism, whereas the physical origin of dynamic triggering remains one of the least understood aspects of earthquake nucleation. We investigate these mechanisms by analysing seismicity patterns with varying fault separation, geometry and with and without dynamic triggering present.
Subjects 260000 Earth Sciences
Keyword earthquake rupture dynamics
interacting fault systems
dynamic stress triggering
static Coulomb stress triggering
synthetic seismicity patterns
seismic wave propagation
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

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Created: Fri, 01 Feb 2008, 11:24:42 EST by Belinda Weaver on behalf of Earth Systems Science Computational Centre