Shear-wave splitting and earthquake forecasting
نویسندگان
چکیده
منابع مشابه
Wave-equation shear wave splitting tomography
G JI S ei sm ol og y Wave-equation shear wave splitting tomography Maureen D. Long,1,∗ Maarten V. de Hoop2 and Robert D. van der Hilst1 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA. E-mail: [email protected] 2Center for Computational and Applied Mathematics, Purdue University, 150 N. University...
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Shear-wave splitting (SWS) analysis using SKS, SKKS, and PKS (hereafter collectively called XKS) phases is one of the most commonly used techniques in structural seismology. In spite of the apparent simplicity in performing SWS measurements, large discrepancies in published SWS parameters (fast direction and splitting time) suggest that a significant portion of splitting parameters has been inc...
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Shear-wave splitting measurements are widely used to analyze orientations of anisotropy. We compare two different shear-wave splitting techniques, which are generally assumed to give similar results. Using a synthetic test, which covers the whole backazimuthal range, we find characteristic differences, however, in fast-axis and delay-time estimates near Null directions between the rotation corr...
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Observations of shear-wave splitting in the Northeastern US Appalachians and in the foredeep of the Urals vary signiicantly with the back azimuth and incidence angle of the incoming phase. These variations suggest two or more layers within the upper mantle with diierent anisotropic properties. Synthetic seismograms for simple multilayered anisotropic structures show that shear-wave splitting pa...
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Fabrice R. Fontaine,1,2 Guilhem Barruol,1,3 Andréa Tommasi3 and Götz H. R. Bokelmann3 1Laboratoire Terre-Océan, Université de Polynésie française, BP 6570, 98702 Faaa, Tahiti, Polynésie française 2Research School of Earth Sciences, Australian National University, Building 61, Mills Road, Canberra, ACT 0200, Australia. E-mail: [email protected] 3Géosciences Montpellier, CNRS, Université Mo...
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ژورنال
عنوان ژورنال: Terra Nova
سال: 2008
ISSN: 0954-4879,1365-3121
DOI: 10.1111/j.1365-3121.2008.00836.x