摘要
介绍了濮阳2次ML4.0级地震的基本参数。2次地震前出现了电磁波、水位、逸出气氦等异常。对前兆资料的异常特征进行了分析研究。异常出现的起始时间、持续时间、异常幅度等不同手段、不同台站在地震前的表现各不相同,表现出异常的复杂多样性。
The parameters of two ML4. 0 earthquakes occurred in Puyan are introduced. Some anomalies of electromagnetic wave, groundwater level and helium gas had appeared before the two events. The characteristic of these anomalies is analyzed. As the beginning time, duration and magnitude of the anomalies are different in stations, it shows the complicated feature of the anomalies.
出处
《华北地震科学》
2003年第4期46-49,共4页
North China Earthquake Sciences
关键词
异常特征
电磁波
水位
逸出气氦
characteristics of anomaly
electromagnetic wave
groundwater level
escaped helium gas