摘要
1987年9月19日富蕴台以北40km处发生了5.8级地震。富蕴台地倾斜于震前一年开始出现中期趋势异常,矢量图形态变化明显偏离正常趋势,异常量级为10^(-6)。其观测资料反映了震前形变前兆异常,从而于6月份提出书面预报意见。文中还对地倾斜的物理机理作了阐述。
On Septmber 19, 1987, an earthquake ( M = 5.8 ) occurred in the north of Fuyun station, 40km from it. The ground tilt data appeared middle-period trend anomalous one year prior to the earthquake, the patterns of the vector deviated normal trend obviously, the anomalous amount was 10-6. As the observed data showed the anomalous changes in the ground tilt deformations before the earthquakes, a written prediction paper was given earily in the June of the year. The physical mechanism of the ground tilt anomaly was discussed here.
出处
《内陆地震》
1989年第1期22-26,共5页
Inland Earthquake
关键词
富蕴
地倾斜
矢量图
地震预报
Fuyun Ground tilt Vector map Difference value Chebyshev fitting
