Relation between seasonal variation of the omaezaki peninsula and sea level change.

概要

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As a part of the earthquake prediction project, GSI is recently conducting leveling surveys four times a year in the Omaezaki peninsula. Through this frequent survey, it was shown that the Omaezaki peninsula uplifts and subsides once a year. Among possible causes, the elastic deformation through buoyancy effect was taken as the most important mechanism that causes the annual variation of the elevation of the peninsula. The vertical motion estimated through two dimensional FEM model is in the same order of what was observed.
日本測地学会の論文