摘要
采用自主研发的地震应力仪、谐振仪、倾斜仪和大地电位仪记录到印度洋8.7级大震的地震前兆——孕震物理模型和临震信号,印度洋8.7级地震前后和8.5级地震前后的地壳受力情况有很大差异,表明印度洋8.7级地震与8.5级地震的成因有着本质的区别,分析了海啸形成的原因,还发现了在8.7级地震的孕育过程中有地下物质迁移迹象。
The precursors-the gestation process and the signal of impending earthquake of the Indian Ocean Earthquake of Ms 8.7 are recorded, with a serious of specially made monitoring instruments, including instruments for stress, resonance, tilt and earth potential. The recordings show that there are great differences for the stress in crust between before and after the earthquake of Ms 8.7 and that of Ms 8.5. This fact indicates the essential distinction regarding to the formation of these two earthquakes. The causation of the tsunami is analyzed. The sign of underground material migration is also found in the gestation process of Ms 8.7 earthquake.
出处
《中国工程科学》
2008年第2期14-25,共12页
Strategic Study of CAE
关键词
印度洋8.7级与8.5级地震
临震信号
顺势脉冲
逆势脉冲
Ms 8.7 and Ms 8.5 earthquake in Indian Ocean
earthquqke precursor
signal of impendingearthquake
tsunami
underground material migration
