1. Development of innovative borehole instruments for earthquake prediction 2. Continuous observation of crustal deformation 3. Strategy for earthquake prediction 4. Development of laser tsunami-meter
Proposal for Ocean-Bottom IBOS Network -For Short-time Prediction of Earthquakes in Ocean Areas-. Proceedings of Symposium on Earthquake Prediction (in Japanese) 1994
On the concepts of some newly-invented borehole three-component strainmeters. Report of the National Research Center for Disaster Prevention No.25 (in Japanese) 1981