theoretical expectation . An Absolute Gravity Standard Station Network in East and South-East Asia has been established as a part of the Asia-Pacific Space Geodynamics Project cooperation campaigns in the International Association of Geodesy (IAG) and the Permanent Committee on GIS Infrastructure for Asia and the Pacific (PCGIAP). A joint team of Japanese and U.S. researchers began a four year project of integrated geodetic observation in 2005, called International Geodetic Project on South Eastern Alaska, for detecting the crustal deformation and studying the viscoelastic structure of the Earth in that area.
References  Journal of the Meteorological Society of Japan, Vol. 82, No. 1B, 2004.  http://www2.nict.go.jp/w/w114/stsi/ivstdc/news_25/pdf/tdcnews_25.pdf  Okubo, S. (ed.), Chikyu ga Maruitte Honto Desu ka ? (Is the Earth Really Round ?) - 50 Questions to
Geodesists, Asahi Sensho 752, Asahi Shimbun-sha, 2004. (in Japanese)  Geodetic Society of Japan, Commemorative CD-ROM Textbook on Geodesy for the fiftieth
anniversary of Geod. Soc. Japan, 2004. (in Japanese)  Kido, M. et al., Seafloor displacement at Kumano-nada caused by the 2004 off Kii Peninsula
earthquakes, detected through repeated GPS/Acoustic surveys, Earth Planet Space, Vol. 58, 911-915, 2006.  Tadokoro, K. et al., Observation of coseismic seafloor crustal deformation due to M7 class offshore
earthquakes, Geophys. Res. Lett., Vol. 33, L23306, doi:10.1029/2006GL026742, 2006.  Fujita, M. et al., Combined GPS/Acoustic seafloor geodetic observation system for monitoring
off-shore active seismic regions near Japan, Proc. ION GNSS-2006, Fort Worth, Texas, 2006.  Imanishi, Y. et al., A network of superconducting gravimeters detects submicrogal coseismic gravity
changes, Science, Vol. 306, 476-478, 2004.