摘要
张北 6 .2级地震现场调查结果表明 ,这次地震形成了大量的非构造地裂缝 ,它们主要分布在极震区和 度区。地裂缝的优势方位为 NNE和 NWW向 ,与 度等震线双向展布基本一致。利用地裂缝的空间分布特征和统计的优势方位 ,探讨了地裂缝与烈度分区和发震构造的关系。
The investigation on the site of Zhangbei earthquake shows that this event formed a lot of ground fissures,which distribute mainly in the zone of Ⅷ intensity and Ⅶ intensity.The preponderant directions of the fissures are NNE and NWW,which is consistent with the two-direction distribution of isoseisms.Based on the spatial distribution feature of the fissures and the statistical preponderant directions,the relation of ground fissure with intensity zoning and seismic structure is discussed.
出处
《华北地震科学》
2001年第4期47-53,共7页
North China Earthquake Sciences
基金
河北省自然科学基金项目 ( 4 9934 8)
