滇西实验场地磁总强度的变化分析
|
摘要
采用滇西实验场流动地磁总强度差值的测量资料,应用地磁差值年变率、年同期处理计算方法,着重分析研究了滇西实验场及其附近发生的1996年2月3日～7日丽江地震（震群）、1995年7月10日～12日孟连中缅交界地震、2001年4月10日及6月8日施甸地震和2001年10月27日永胜-宾川地震有关流磁差值年变率及年同期差值的异常变化特征。结果表明,在上述地震前,滇西实验场流磁差值年变率及年同期差存在明显的异常变化。该异常变化特征为:先从震中区的外围开始出现异常点,形成一定范围的异常区域,然后逐步向震中区发展,地震发生在异常区内或外围边缘地区。这些结果对滇西实验场Ms≥5.0地震的短期预测具有重要意义。
The features of anomaly changes in the annual rate and annual difference of reduction value of total field in the moving geomagnetic survey, associated with the earthquakes occurring in the Dianxi Test Field and its neighborhood, which were the following: Lijing (Feb. 3. 1996), Menglian (July 10, 1995 in the border area between China and Bureau), Shidian (Apr. 10. 2001 and June 8. 2001) and Yongshen-Binchuan (Oct. 27. 2001), have been analyzed and studied. The features shows that the anomalous changes appeared earlier in the observational points locating in the area a little far away from the future epicenters than in those points in the epicenter area. The results have an important meaning for the short-term prediction of earthquakes with magnitude higher than 5 in the experimental site of the western Yunnan area.
The features of anomaly changes in the annual rate and annual difference of reduction value of total field in the moving geomagnetic survey, associated with the earthquakes occurring in the Dianxi Test Field and its neighborhood, which were the following: Lijing (Feb. 3. 1996), Menglian (July 10, 1995 in the border area between China and Bureau), Shidian (Apr. 10. 2001 and June 8. 2001) and Yongshen-Binchuan (Oct. 27. 2001), have been analyzed and studied. The features shows that the anomalous changes appeared earlier in the observational points locating in the area a little far away from the future epicenters than in those points in the epicenter area. The results have an important meaning for the short-term prediction of earthquakes with magnitude higher than 5 in the experimental site of the western Yunnan area.
引文
房宗绯,黄庆玲,马森林.2002.浑源-阳源Ms5.6地震流磁差值年变率短期异常追踪分析[J].地震地磁观测与研究,21（6）:58～65
黄庆玲,马森林,乔成斌等.1998.地磁差值年变率δF异常与地震预测短期追踪研究[J].地震,增刊,77～81
马森林,黄庆玲.1995.大同-阳高中强地震的地磁短期异常空间演变特征再研究[J].山西地震,1,45～49
石安.1990.云南中强地震前后的地磁变化和预报判别指标[C].见:地震预报方法实用化研究文集,北京:学术书刊出版社,63～70
云南省地震局前兆室流磁组.1984.剑川5.3级地震的地磁变化[J].地震研究,7,417～424
赵从利,詹志佳,高金田,沈文志.2002.北京地区地磁测量及其成果[J].地震地磁观测与研究,23（1）:1～9
M Johnson. 1997. Review of electric and magnetic fields accompanying seismic and volcanic activity[J]. Surveys in geophysics, 18(1):441～475
R Mueller and M Johnston. 1998. Review o magnetic field monitoring near active faults and volcanic calderes in California 1974～1995[J].Physics of the Earth and Planetary ?interiors, 105(1): 131～144
T Rikitake and Y Honkura. 1985. Solid Earth geomagnetism [M]. Tarra scientific publishing, Tokyo, Japan
V Shapiro, M Muminov and K Abdullabekov. 1994. High precision magnetometry for earthquake prediction in Uzbekistan: ninety-oneforecasts between 1982 and 1992. In: Hayakawa, M. and Fujinawa, Y. (edited), Electromagnetic phenomena related to earthquakeprediction [M]. Terra scientific publishing company, Tokyo, 37～42
Fuxin Yao, M. Johnston, R. Mueller, Zhijia Zhan, An Shi and Xiaong Zhang. 1995. Deformation and magnetic field change oh the RedRiver fault system near Dengchaun and Liante, Yunnan, China[R]. 1985～1994, 1995 AGU fall meeting, December 11～15, 1995, SanFrancisco, USA
Zhijia Zhan, Jintian Gao, Hongli Zhao, Wenzhao Shen and Xinqing Cui. 1999. Seismomagnetic signals observed in China. In: Hayakawa,M.(ed.), Atmospheric and Ionospheric electromagnetic phenomena associated with earthquakes[R], 185～196. Terra ScientificPublishing Company, Tokyo, Japan
黄庆玲,马森林,乔成斌等.1998.地磁差值年变率δF异常与地震预测短期追踪研究[J].地震,增刊,77～81
马森林,黄庆玲.1995.大同-阳高中强地震的地磁短期异常空间演变特征再研究[J].山西地震,1,45～49
石安.1990.云南中强地震前后的地磁变化和预报判别指标[C].见:地震预报方法实用化研究文集,北京:学术书刊出版社,63～70
云南省地震局前兆室流磁组.1984.剑川5.3级地震的地磁变化[J].地震研究,7,417～424
赵从利,詹志佳,高金田,沈文志.2002.北京地区地磁测量及其成果[J].地震地磁观测与研究,23（1）:1～9
M Johnson. 1997. Review of electric and magnetic fields accompanying seismic and volcanic activity[J]. Surveys in geophysics, 18(1):441～475
R Mueller and M Johnston. 1998. Review o magnetic field monitoring near active faults and volcanic calderes in California 1974～1995[J].Physics of the Earth and Planetary ?interiors, 105(1): 131～144
T Rikitake and Y Honkura. 1985. Solid Earth geomagnetism [M]. Tarra scientific publishing, Tokyo, Japan
V Shapiro, M Muminov and K Abdullabekov. 1994. High precision magnetometry for earthquake prediction in Uzbekistan: ninety-oneforecasts between 1982 and 1992. In: Hayakawa, M. and Fujinawa, Y. (edited), Electromagnetic phenomena related to earthquakeprediction [M]. Terra scientific publishing company, Tokyo, 37～42
Fuxin Yao, M. Johnston, R. Mueller, Zhijia Zhan, An Shi and Xiaong Zhang. 1995. Deformation and magnetic field change oh the RedRiver fault system near Dengchaun and Liante, Yunnan, China[R]. 1985～1994, 1995 AGU fall meeting, December 11～15, 1995, SanFrancisco, USA
Zhijia Zhan, Jintian Gao, Hongli Zhao, Wenzhao Shen and Xinqing Cui. 1999. Seismomagnetic signals observed in China. In: Hayakawa,M.(ed.), Atmospheric and Ionospheric electromagnetic phenomena associated with earthquakes[R], 185～196. Terra ScientificPublishing Company, Tokyo, Japan
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心