摘要
20 0 0年 6月底 ,东京以南的伊豆岛开始发生火山与地震活动。此后 ,在伊豆岛观测到异常的地壳变形 ,8月底 ,火山与地震活动达到高潮。对潮汐与火山和地震活动的关系进行了分析 ,认为 :地壳变形是由伊豆岛的岩脉侵入引起的 ,并且与强潮汐天文条件相对应。
At the end of June,2000,volcanic and seismic events occureed on Izu islands to the south of Tokyo.After the events,anomalous crustal deformation was observed around the islands.At the end of August,both the volcanic and seismic activities reached a peak.It is suggested that the crustal deformation was caused by a dyke intrusion event on Izu islands and concerned with strong tides.Tidal model of sea floor spreading is proposed on the basis of observational and calculated data.
出处
《大地测量与地球动力学》
CSCD
2003年第2期77-80,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金项目 (批准号 :497742 2 8)
吉林大学社会科学精品工程项目
关键词
潮汐
海底扩张
太平洋地壳
跷跷板运动
火山
地震
tides,volcano,earthquake,sea floor spreading, Pacific crust,seesaw movement
