Spatial variations of the 660-km discontinuity in the western Pacific subduction zones observed from CEArray triplication data |
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| Authors: | Baoshan Wang Fenglin Niu Institute of Geophysics China Earthquake Administration Beijing China |
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| Affiliation: | Baoshan Wang 1,and Fenglin Niu 2 1 Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 2 Department of Earth Science,Rice University,Houston,TX 77005,USA |
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| Abstract: | We examined the spatial variation of velocity structures around the 660-km discontinuity at the western Pacific subduction zones by waveform modeling of triplication data.Data from two deep earthquakes beneath Izu-Bonin and Northeast China are used.Both events were well recorded by a dense broadband seismic network in China (CEArray).The two events are located at approximately the same distance to the CEArray,yet significant differences are observed in their records:(1) the direct arrivals traveling above t... |
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| Keywords: | P-wave triplication 660-km discontinuity western Pacific subduction zone |
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