摘要
曹妃甸地震台电磁扰动自观测以来,除2013年12月—2014年4月,其他月份均出现背景值增大的高值变化。通过观测环境调查分析,认为该变化由地震台站北侧恒压供水变频泵供电干扰造成,非地震前兆异常。
The high background values of electromagnetic observation data have emerged monthly since the the electromagnetic observation began at Caofeidian Seismic Station, except for the period from December 2013 to April 2014. As the result of analysis and investigation of the observation environment, the high background values of electromagnetic disturbance are due to the power supply interference of the constant pressure water supply pump northern of the station, and are not earthquake precursors.
出处
《地震地磁观测与研究》
2015年第4期26-29,共4页
Seismological and Geomagnetic Observation and Research
基金
河北省地震局地震科技星火计划项目"曹妃甸地震台电磁扰动资料研究"(项目编号:DZ20150416007)
关键词
电磁扰动
异常分析
供电干扰
地震前兆
electromagnetic disturbance
analysis on electromagnetic anomalies
power interference
earthquake precursors
