摘要
应用“全时空、有限时空扫描及时空强三维轴向稳定性检验”等“九五”研究最新技术途径 ,深入分析和研究了兴海 6 6级地震前 ,2年时间尺度内小震活动的发展及强震的孕育过程 ,并提取了较为稳定、清晰的小震活动演化图像。其演化过程为 :中短期空区( 2年尺度 )→短期空区 ( 1年尺度 )→中小震条块 ( 1～ 0 5年尺度 )→显著地震事件 ( 1～ 0 5年尺度 )→逼近地震 (≤ 0 3个月 )→主震发生。同时 。
WT5BZ]By applying the newest technical method of “scanning of large-scale and limited temperal-spatial.three-dimensional axial stability test of time-space-magnitude”in“the ninth five-year period”,the authors have analysed the small earthquake activity and strong earthquake preparation in the scale of two years before Xinghai earthquake with M s 6 6,and got more stable and clear evolutionary maps of small earthquake activity.The evolutionary process is:Middle-short term gap(in two-year scale)→short term gap(in one-year scale)→middle-small earthquake belts(in 1～0 5 year scale)→large earthquake event (in 1～0 5 year scale)→approach earthquake(≤0 3 months)→main shork.Meanwhile,they have analysed systematically the subsurface fluid in north-eastern area in Qinghai province. [WT5HZ]
出处
《高原地震》
2001年第1期26-31,共6页
Plateau Earthquake Research
基金
中国地震局"九五"重点攻关项目 (95-0 4 -0 1 -0 1 )
