III. Geodetic Results of Experiments

III-2. Movements of the Minamidaito Station

by Jun AMAGAI, Tetsuro KONDO, Michito IMAE, Noriyuki KURIHARA, Yuji SUGIMOTO, Taizo YOSHINO, Fujinobu TAKAHASHI, Hitoshi KIUCHI, Shin'ich HAMA, Yukio TAKAHASHI, Hiroshi TAKABA, Takahiro IWATA, Yasuhiro KOYAMA, Yuko HANADO, Mamoru SEKIDO, and Akihiro KANEKO

Abstract

Geodetic VLBI Experiments were carried out on the baselines including Minamidaito island in 1990 and 1991. It was the first attempt to determine the Philippine sea plate movement by multi-baseline VLBI experiments. The Philippine sea plate motions relative to the Eurasian plate and the North American plate are estimated using the data obta ined by the experiments. The plate velocity estimated by the experiments are larger than that derived from geological and seismological data, and the results of GPS observations. The direction of the observed movement of Minamidaito relative to the Eurasian plate is N78.1W and rather close to the result of GPS measurement.

For request of pre-prints, please send e-mail to the main author (amagai(AT)nict.go.jp). Last Update: Feb. 21, 1995