[en] The report consists of eight chapters; introduction, summary of investigation, study of upheaval and encroach, change of season and sea standard, volcanic activity, earthquake and fault, long-range estimation of geological environment and a plan for the future. Two technologies of a long-term estimation and investigation of change of underground are studied. On the first technology, estimation model of change of three dimensional topographies (large area) and volcanic activity and analytical method of position of hypocenter fault and activity were developed. On the latter one, estimation model of change of three dimensional topographies (small area), estimation method of displacement of coast line, precise restoration technology for Quaternary igneous activity, exploration technique of hypocenter fault and magma reservoir in the deep underground and evaluation technology of change of ground water caused fault activity were developed. An analytical tool of diastrophism considered gliding fault is going to finish. (S.Y.)