摘要
本文对河北及邻近地区的历史强地震的活动时间作了统计研究,发现河北及邻近地区强震存在50年周期现象,50年周期可能是反映河北及邻近地区地震较好的长期以来相对稳定的一种周期规律。
In this paper, made a statistical study on the history of Hebei and the neighboring regions strong earthquake activity time, the presence of a 50-year cycle phenomenon found in Hebei and the neighboring regions of strong earth quakes, the 50-year cycle may be reflect earthquake of Hebei and the neighboring areas better relatively stable periodic pattern for a long time.
出处
《科教导刊》
2012年第32期245-247,共3页
The Guide Of Science & Education
关键词
强震周期活跃平静
strong earthquake
cycle
active
calm