学会誌「自然災害科学」

自然災害科学41 Vol.16,No.1, 1997, p41f

【論文】[Regular Paper]

地球化学的地震予知研究について

Review of Geochemical Research for Earthquake Prediction

小泉 尚嗣*

Naoji KOIZUMI*

Abstract

Geochemical research for earthquake prediction is reviewed in this paper. In Japan, the term 'geochemical research for earthquake prediction' incorporates also hydrological and/or geohydrological researches for the same purpose. Brief introduction is made of the dilatancy-diffusion model on which earthquake-predictive geochemical research was largely based in the 1970's. Theoretical aspects of groundwater response to crustal strain changes in a water-saturated, porous and elastic medium are also discussed, because it seems to supplant the dilatancy-diffusion model as the theoretical basis for the earthquake-predictive geochemical research. Several studies on groundwater level, temperature, quality, and on the concentrations of Rn, He and H2 in groundwater and subsurface gas are also briefly introduced. Some problems in this research are pointed out together with suggestions for future studies.

キーワード:

地震予知，地震前兆現象，地下水，地球化学，地下ガス

Key words:

earthquake prediction, earthquake precursor, groundwater, geochemistry, subsurface gas
*
京都大学防災研究所（現在：通商産業省工業技術院地質調査所）
Disaster Prevention Research Institute, Kyoto University (at present: Geological Survey of Japan, Agency of Industrial Science and Technology, Ministry of International Trade and Industry)