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In the paper, we use the Central Moment Tensor (CMT) solution acquired by Harvard University for the earth- quakes occurred in Kurile Islands to analyze the consistent focal mechanism in the area and propose the idea of making earthquake prediction based on the consistent parameter a of focal mechanism and stress field. The results from the study indicate that before MW≥7.5 earthquakes, the consistent parameter a decreases, which starts about 10~110 days and ends about 30~2 days before the great earthquakes. Although the phenomenon is not totally the same for individual earthquake, the difference is not large. Certainly, the phenomenon should be tested by time for its reliability. However, it should not be random that the focal mechanism of MW≥5.3 earthquakes are consistent successively with the stress field in an area of several hundreds kilometers in length. It should be a phenomenon of predictive significance. When the accumulated earthquake examples are sufficient, uniform judgment criteria and prediction principles can be stipulated then.
In the paper, we use the Central Moment Tensor (CMT) solution acquired by Harvard University for the earth- quakes occurred in Kurile Islands to analyze the consistent focal mechanism in the area and propose the idea of making earthquake prediction based on the consistent parameter a of focal mechanism and stress field. The results from the study that that before MW ≧ 7.5 earthquakes, the consistent parameter a decreases, which starts about 10 ~ 110 days and ends about 30 ~ 2 days before the great earthquakes. totally the same for individual earthquake, the difference is not large. Certainly, the phenomenon should be tested by time for its reliability. Certain, it should be tested by time for its reliability. Certainly, the phenomenon should be tested by time for its reliability. Certainly, the phenomenon should be tested by time for its reliability. an area of several hundreds kilometers in length. It should be a phenomenon of predictive significance. When the accumulated earthquake examples are sufficient, uniform judg ment criteria and prediction principles can be stipulated then.