Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002geoji.150..809z&link_type=abstract
Geophysical Journal International, Volume 150, Issue 3, pp. 809-819.
Astronomy and Astrophysics
Astronomy
11
Earthquake Slip Vectors, Euler Vector, Intraplate Deformation, Philippine Sea Plate, Relative Plate Motion
Scientific paper
We determine Euler vectors for 12 plates, including the Philippine Sea plate (PH), relative to the fixed Pacific plate (PA) by inverting the earthquake slip vectors along the boundaries of the Philippine Sea plate, GPS observed velocities, and 1122 data from the NUVEL-1 and the NUVEL-1A global plate motion model, respectively. This analysis thus also yields Euler vectors for the Philippine Sea plate relative to adjacent plates. Our results are consistent with observed data and can satisfy the geological and geophysical constraints along the Caroline (CR)-PH and PA-CR boundaries. The results also give insight into internal deformation of the Philippine Sea plate. The area enclosed by the Ryukyu Trench-Nankai Trough, Izu-Bonin Trench and GPS stations S102, S063 and Okino Torishima moves uniformly as a rigid plate, but the areas near the Philippine Trench, Mariana Trough and Yap-Palau Trench have obvious deformation.
Chen Qi Yong
Liu Yong Gang
Ning Jie Yuan
Shen Zheng Kang
Zang Shao Xian
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