摘要
全面分析了1900~1996年发生在中国的7.0级以上大地震的天文特征。分析结果表明,本世纪106次7.0级以上大地震中,71%发生于月亮轨道(白道)与赤道交角变小阶段,62%以上发生于月亮升交点黄经位于350°~210°期间。这说明月亮轨道运行至此将会是中国地震活跃期。中国人地震的发生与太阳活动及地球自转密切相关,太阳活动谷年普遍都有大地震发生;地球自转速度加快则大地震多,本世纪地球自转速度加快时段发生的大震占72%。文中最后还对未来两年的大震趋势提出了初步预测.
This paper analyses throughly the astronomical characteristics when the major earthquakesabove magnitude 7.0 occurred in China from 1900 to 1996. The analysed results show that among the106 earthquakes above magnitude 7.0 in 20th century, there are 71% occurred in the period when anglebetween Moon's path and the celestial equator turns small and there are over 62% happened whenthe lunar longitude of ascending node lies from 350°to 210°. It shows that seismic activity period inChina will come when lunar orbit moves to these positions. The solar activity and earth self-rotationhave a direct effect on the eruption of events in China. There are ordinarily the occurrellces of themajor events in the gorge years of the solar activity. There are more events when the earthself-rotation accelerate. 72% of the major eventS in 20th century occurred during the accelerating period of the earth self-rotation. The preliminary prediction for major earthquake tendency for future twoyears is given in the paper.
出处
《自然灾害学报》
CSCD
1999年第1期30-34,共5页
Journal of Natural Disasters
关键词
地震
系统科学
天文特征
地球自转
earthquake, system science, astronomical characteristic