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。

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 M_S5.0 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.

P315

“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