Interseismic Gravity Change at a Subducting Plate Margin: A Paradoxical Observational Result at Omaezaki, Tokai, Japan
We find regional gravity decrease during an interseismic period at a subduction plate boundary where the land is steadily subsiding. This paradoxical finding poses a challenging problem on the subduction dynamics at converging plate boundaries.
KeywordsBouguer Gravity Gravity Change North American Plate Absolute Gravity Geographical Survey Institute
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- Geographical Survey Institute (1996): Crustal movements in the Tokai district, Rep. Coordinating Committee Earthquake Prediction, 56, 346–367.Google Scholar
- Kuroishi, Y. and M. Murakami (1991): Results of absolute gravity measurements by Geographical Survey Institute (III), Bull. Geographical Survey Institute, 36, 21–31.Google Scholar
- Tsubokawa, T., H. Hanada, S. Tsuruta and S. Nakai (1992): Absolute gravity measurements at Omaezaki, 78-th Meeting Program and Abstracts, the Geodetic Society of Japan, 57–58.Google Scholar
- Mogi, K. (1993): Recent vertical movement of the ground along the Suruga Bay estimated from the annual mean sea level data, Rep. Coordinating Committee Earthquake Prediction, 49, 363–370.Google Scholar
- Nagoya University, Kyoto University, Geographical Survey Institute, National Astronomical Observatory Mizusawa (1996): Gravity change in Tokai district, Rep. Coordinating Committee Earthquake Prediction, 55, 461–463.Google Scholar