Three-dimensional variations in present-day tectonic stress along the Australia–Pacific plate boundary in New Zealand

Three-dimensional variations in present-day tectonic stress along the Australia–Pacific plate boundary in New Zealand

Using a newly compiled data set of 3424 focal mechanisms, we have estimated tectonic stress parameters at 100 locations throughout central New Zealand in the largest study to date of the tectonic stress field along the Australia–Pacific plate boundary. The results reveal pronounced changes in the az...

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Veröffentlicht in:Earth and planetary science letters 2012-11, Vol.353-354, p.47-59
Hauptverfasser: Townend, John, Sherburn, Steven, Arnold, Richard, Boese, Carolin, Woods, Lisa
Format: Artikel
Sprache:eng
Schlagworte:
Alpine fault
Australia–Pacific plate boundary
Boundaries
Compressive properties
Earthquake damage
Hikurangi subduction margin
New Zealand
Orientation
Seismic phenomena
Stresses
Taupo Volcanic Zone
tectonic stress
Tectonics
Three dimensional
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Zusammenfassung:Using a newly compiled data set of 3424 focal mechanisms, we have estimated tectonic stress parameters at 100 locations throughout central New Zealand in the largest study to date of the tectonic stress field along the Australia–Pacific plate boundary. The results reveal pronounced changes in the azimuth of maximum horizontal compressive stress SHmax along the shallow portion (
ISSN:0012-821X
1385-013X
DOI:10.1016/j.epsl.2012.08.003