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在这一地区布设一包括20个台站的地震台阵并测量了本区地磁场 B 的总场强度。测量自1981年起每双月进行一次。计算每一台站(Si)所测的总场强度(Si)和基准台所测的总场强度之间的差值ΔB,发现这些差值的耐间变化特征。此外,为更精确地确定在研究地区测得的电导异常,在12个台站记录了地磁场瞬时变化。本文还讨论电导异常对ΔB的变化所起的作用。这些差值的变化极为明显,其原因是台阵所在地震磁场变化极大。本文提出一震磁场变
A seismic array consisting of 20 stations is laid in this area and the total field strength of the geomagnetic field B in this area is measured. Measurements are taken every two bimonthly since 1981. Calculate the difference ΔB between the total field strength (Si) measured at each station (Si) and the total field strength measured at the reference station and find the resistance-to-time variation of these differences. In addition, to more accurately determine the conductance anomalies measured in the study area, transient changes in geomagnetic field were recorded at 12 stations. This article also discusses the role of conductance anomalies on ΔB changes. The changes of these differences are extremely obvious because of the great variation of the seismic magnetic field where the array is located. This paper presents a shock magnetic field changes