| 台湾7.6级地震及其强余震前电磁辐射特征 |
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| 引用本文： | 陈宝华.台湾7.6级地震及其强余震前电磁辐射特征[J].防灾减灾工程学报,1992(4). |
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| 作者姓名： | 陈宝华 |
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| 作者单位： | 福建省地震局 |
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| 摘 要： | 本文总结了1986年11月15日台湾花莲海域地震及其强余震前电磁辐射的前兆特征。所用的仪器为DDC-2型电子补偿仪、XWX-2042电位差计,记录极距为100m的两埋地电极间所接收到的电磁辐射信息,震前异常波形最大幅度可达187.5mv,为正常背景的十数倍,频谱较宽(0.005—5Hz)。这种特征对认识发生在太平洋板块与亚欧板块上的地震有一定意义。
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| 关 键 词： | 台湾 强余震 电磁辐射 |
CHARACTERISTICS OF ELECTROMAGNETIC EMISSIONS PRIOR TO TAIWAN EARTHQUAKE OF Ms=7.6 AND ITS STRONG AFTERSHOCKS |
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| Chen Baohua Seismological Bureau of Fujian Province.CHARACTERISTICS OF ELECTROMAGNETIC EMISSIONS PRIOR TO TAIWAN EARTHQUAKE OF Ms=7.6 AND ITS STRONG AFTERSHOCKS[J].Journal of Disaster Prevent and Mitigation Eng,1992(4). |
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| Authors: | Chen Baohua Seismological Bureau of Fujian Province |
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| Institution: | Chen Baohua Seismological Bureau of Fujian Province |
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| Abstract: | This paper generalizes the precusor characteristics of the electromagnetic emis- sions prior to the main earthquake and its strong aftershocks occurred in offshore of Hualian of Taiwan on Nov.15,1986.The electromagnetic emission is recorded with DDC-2 type electronic compensator and XWX-2042 potentiometer,the po- lar distance of which is 100m,maximum anomalous amplitude is 187.5mv that is ten times as big as normal background value.The spectrum of anomalous signals is wider(0.005—5Hz).The above characteristics of electromagnetic emission signals have some significances for the study of the earthquakes occurred in the Pacific plate and Eurasian plate. |
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| Keywords: | Taiwan earthquake strong aftershock electromagnetic emission |
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