ZHANG Cong-zhen, LIU Ji-lu, DU Ying-chun. THE ABNORMAL VARIATION OF P WAVE EMERGENT ANGLE AND AZIMUTH ANGLE BEFORE ZHANGBEI M5.6 EARTHQUAKE[J]. North China Earthquake Sciences, 2002, 20(1): 43-48.
Citation:
ZHANG Cong-zhen, LIU Ji-lu, DU Ying-chun. THE ABNORMAL VARIATION OF P WAVE EMERGENT ANGLE AND AZIMUTH ANGLE BEFORE ZHANGBEI M5.6 EARTHQUAKE[J]. North China Earthquake Sciences, 2002, 20(1): 43-48.
ZHANG Cong-zhen, LIU Ji-lu, DU Ying-chun. THE ABNORMAL VARIATION OF P WAVE EMERGENT ANGLE AND AZIMUTH ANGLE BEFORE ZHANGBEI M5.6 EARTHQUAKE[J]. North China Earthquake Sciences, 2002, 20(1): 43-48.
Citation:
ZHANG Cong-zhen, LIU Ji-lu, DU Ying-chun. THE ABNORMAL VARIATION OF P WAVE EMERGENT ANGLE AND AZIMUTH ANGLE BEFORE ZHANGBEI M5.6 EARTHQUAKE[J]. North China Earthquake Sciences, 2002, 20(1): 43-48.
THE ABNORMAL VARIATION OF P WAVE EMERGENT ANGLE AND AZIMUTH ANGLE BEFORE ZHANGBEI M5.6 EARTHQUAKE
the emergent angle and azimuth angle are calculated with the three components onset amplitude of P wave recored by Zhangjiakou Seismostation.The abnormal variations of the emergent angle and azimuth angle on Mar.11, 1999, before Zhangbei M5.6 earthquake are studied, and the anomalies before the event are also discussed.
DownLoad: