黄根喜. 张北6.2级地震前宝昌地震台的前兆异常研究[J]. 华北地震科学, 2000, 18(1): 45-48.
引用本文: 黄根喜. 张北6.2级地震前宝昌地震台的前兆异常研究[J]. 华北地震科学, 2000, 18(1): 45-48.
Huang Genxi. STUDY ON THE ANOMALIES OF BAOCHANG SEISMOLOGICAL OBSERVATORY STATION BEFORTHE ZHANGBEI MS6.2 EARTHQUAKE[J]. North China Earthquake Sciences, 2000, 18(1): 45-48.
Citation: Huang Genxi. STUDY ON THE ANOMALIES OF BAOCHANG SEISMOLOGICAL OBSERVATORY STATION BEFORTHE ZHANGBEI MS6.2 EARTHQUAKE[J]. North China Earthquake Sciences, 2000, 18(1): 45-48.

张北6.2级地震前宝昌地震台的前兆异常研究

STUDY ON THE ANOMALIES OF BAOCHANG SEISMOLOGICAL OBSERVATORY STATION BEFORTHE ZHANGBEI MS6.2 EARTHQUAKE

  • 摘要: 1998年1月10日河北省张北6.2级地震前,距震中100 km的内蒙古宝昌地震台石英倾斜仪NS分量自1996年7月出现向南倾斜的趋势异常,EW分量1997年8月出现向西倾斜的短期异常,并在地震发生前6天之内,倾斜仪固体潮记录曲线上出现多次阶跃式畸变,可能是张北6.2级地震的临震前兆。与此同时,该台站的地电阻率也在震前2.5个月出现短期异常。

     

    Abstract: Before the Zhangbei Ms6.2 earthquake of January 10,1998 in Hebei province,the NS component of quartz tiltmener of Baochang station loated in Inner Mongolia,100km from the epicenter,showed a south-tilt tendency anomaly from July 1996,and in August 1997 the EW component also showed short-term west-tilt anomaly.Within 6 days before the event,the curve of solid tide recorded by the tiltmeters showed many times jumping distortion,which may be the imminent precursor of the event.At the same time,the earth resistivity of the station also showed short-term anomaly 2.5 month before the quake.

     

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