摘要
展示了潮汐形变观测记录到的12个震例31个异常图像,总结了震例异常的特点、形态、量级,分析了潮汐形变波异常的时空特征:主震震级MS≥5.9级时出现异常的可能性大,异常出现的时间多为震前0.1~6.5天,MS为5、6、7、≥7.9时,异常的有效监测距离分别为70、300、500、2000km。
In this paper, 31 anomalous patterns of 12 earthquakes recorded by tidal deformation observation are shown. The features, shapes and magnitudes of earthquake anomalies are summarized. The time-space characteristics of tidal deformation wave anomalies are analyzed to show that: 1.There is considerable possibility of anomaly to appear when the magnitude is Ms5.9 or above. 2. The appearing time of anomaly before earthquake occurring is 0.1-6.5 days mostly, its effective monitoring distance for magnitudes Ms=5, 6, 7 and ≥5.9 is about 70, 300, 500 and 2000kin separatelv.
出处
《华南地震》
2006年第1期89-105,共17页
South China Journal of Seismology
基金
地震科学联合基金老专家预报专项课题(305010)
关键词
潮汐形变
异常图像
特点
形态
量级
时空特征
Tidal deformation
Anomaly pattern
Feature
Shape
Magnitude
Time -space characteristics