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| 强震临震微波动现象初步研究(二) |
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杨立明1,2, 郝臻1, 王建军1, 张淑珍1, 姚家俊3, 董蕾4
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1.中国地震局兰州地震研究所, 兰州市东岗西路450号 730000;2.青海省地震局, 西宁市兴海路1号 810001;3.中国地震局地球物理勘探中心, 郑州 450002;4.重庆市地震局, 重庆 401147
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| 摘要: |
| 为了验证和检验强震临震微波动现象及其主要特征，利用甘、青、川、滇、藏等区域台网200余个宽频带数字地震台站的波形资料，建立了实时监控技术系统。通过对2012～2014年间青藏块体发生的24次5级以上地震及部分无震区域台站观测的全程实时跟踪、动态监控，检验和验证了临震微波动现象的重现性和客观性，验证了临震微波动现象的频谱、时间、空间、方向性等特征，进一步得出了临震微波动现象可能与地震强度有关，且震级越大，震前出现持续临震微波动的可能性越大的结论。 |
| 关键词: 临震微波动 时空指标 验证 |
| DOI： |
| 分类号:P315 |
| 基金项目:“十二·五”国家科技支撑计划专题“数字地震技术在强震中短期预测中的应用”（2012BAK19B02-01）资助 |
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| Preliminary Study on Phenomenon of Microwave Fluctuation Impending Strong Earthquake(2) |
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Yang Liming1,2, Hao Zhen1, Wang Jianjun1, Zhang Shuzhen1, Yao Jiajun3, Dong Lei4
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1.Lanzhou Institute of Seismology, CEA, Lanzhou 730000, China;2.Qinghai Earthquake Agency, Xining 810001, China;3.Geophysical Exploration Center, CEA, Zhengzhou 450002, China;4.Chongqing Earthquake Agency, Chongqing 401147, China
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| Abstract: |
| In order to verify the phenomenon of microwave fluctuation impending earthquake and test the accuracy of its main features,real-time monitoring technology system was established based on waveform data recorded by more than 200 digital broad-band seismic stations of Gansu,Qinghai,Sichuan,Yunnan,Tibet and other regional digital seismic networks. The system examined reproducibility and objectivity of microwave fluctuation impending earthquake and verified spectrum,time,space,directionality and other features of the phenomenon through whole course real-time tracking and dynamic monitoring 24 earthquakes above MS5.0 observed in Qinghai-Tibetan Block between 2012 and 2014 and stations partially distributed in earthquake-free areas. We then made the conclusion that phenomenon of microwave fluctuation impending earthquake can be related to earthquake intensity. Moreover,the greater the magnitude,the more possibility of persistent micro-fluctuations before earthquake. |
| Key words: Microwave fluctuation impending earthquake Time and space index Verification |
