Информационная система "Конференции"


II International Workshop
ACTIVE GEOPHYSICAL MONITORING
OF THE EARTH LITHOSPHERE

September 12-16, 2005, Novosibirsk, Academgorodok

Attention!!!

We inform, that term of submission of theses and reports is prolonged till June, 30.

Abstracts

AN ATTEMPT TO DETECT INTER-PLATE REFLECTION PHASE WITH ACROSS -PRELIMINARY RESULTS USING A SHORT ARRAY

Ryoya Ikuta, Toshiki Watanabe, Tomoyuki Soma, Atsushi Saiga, Koshun Yamaoka, Kayoko Tsuruga, Takahiro Kunitono, Yoko Hasada, Junzo Kasahara, Mikio Satomura, Mineo Kumazawa, Naoyuki Fujii

Graduate school of Environmental Study (Nagoya University (JAPAN),
Earthquake Research Institute (Tokyo University JAPAN ),
Tono Geoscience Center (Japan Nuclear Cycle Development Institute JAPAN),
Shizuoka University (JAPAN)

We started a long-distance seismic measurement using ACROSS (Accurately Controlled and Routinely Operated Signal System) since the end of 2004 in Tokai region central Japan. We attempt to detect reflected phases from subducting Philippine Sea plate and also to detect temporal changes in physical properties of the plate boundary. ACROSS source has been generating sinusoidal seismic signals. The signals distribute in a frequency band from10 to 20 Hz. We deployed a dense array with the length of 2 km at a site of 55 km distant from the source. As a preliminary result, we detected P, S and other later phases in a transfer function stacked for a month. We will apply an array analysis to the records stacked for longer period. More detailed discussions about the detected phases and their temporal changes will be made by introducing several velocity structures.

Note. Abstracts are published in author's edition

Last update: 06-Jul-2012 (11:44:54)