P-wave tomography for 3-D radial and azimuthal anisotropy of Tohoku and Kyushu subduction zones
We determined high-resolution P-wave tomography for 3-D radial and azimuthal anisotropy of the Tohoku and Kyushu subduction zones using a large number of high-quality arrival-time data of local earthquakes recorded by the dense seismic network on the Japan Islands. Trench-normal P-wave fast-velocity...
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| Veröffentlicht in: | Geophysical journal international 2013-06, Vol.193 (3), p.1166-1181 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We determined high-resolution P-wave tomography for 3-D radial and azimuthal anisotropy of the Tohoku and Kyushu subduction zones using a large number of high-quality arrival-time data of local earthquakes recorded by the dense seismic network on the Japan Islands. Trench-normal P-wave fast-velocity directions (FVDs) are revealed in the backarc mantle wedge in both Tohoku and Kyushu, which are consistent with the model of slab-driven corner flow. Trench-parallel FVDs with amplitude |
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| ISSN: | 0956-540X 1365-246X |
| DOI: | 10.1093/gji/ggt086 |