| 十堰及邻区地震构造环境浅析 |
| |
| 引用本文： | 许光炳,刘可,付燕玲,耿爱玲.十堰及邻区地震构造环境浅析[J].大地测量与地球动力学,2003,23(4):105-110. |
| |
| 作者姓名： | 许光炳 刘可 付燕玲 耿爱玲 |
| |
| 作者单位： | 湖北省地震局地震监测预报中心,武汉,430071 |
| |
| 基金项目： | 中国地震局地震科学联合基金 ( 3 960 11)资助 |
| |
| 摘 要： | 研究了十堰及邻区区域构造背景和地球物理场分布特点，分析了区域性地震构造与有感地震和中强地震活动的关系。结果表明：区内中强地震活动与北西西向、北北西向断裂及北东-北北东向断裂密切有关；5级左右地震活动发生在大型沉降区内次级凸起与凹陷的交接带、现代构造活动的盆地或地槽、莫霍面斜坡扭曲部位；6级以上地震发生在现代地壳隆起边缘的沉降区一侧或大型凸起与凹陷区的过渡部位。
|
| 关 键 词： | 地震构造 地震活动 十堰地区 区域构造背景 |
| 文章编号： | 1671-5942(2003)04-0105-06 |
| 修稿时间： | 2003年2月10日 |
ANALYSIS OF SEISMIC TECTONIC ENVIRONMENT IN SHIYAN AREA AND ITS VICINITY |
| |
| Xu Guangbing,Liu Ke,Fu Yanling and Geng Ailing.ANALYSIS OF SEISMIC TECTONIC ENVIRONMENT IN SHIYAN AREA AND ITS VICINITY[J].Journal of Geodesy and Geodynamics,2003,23(4):105-110. |
| |
| Authors: | Xu Guangbing Liu Ke Fu Yanling and Geng Ailing |
| |
| Abstract: | The features of tectonic background and geophysical field distribution within and near Shiyan city are studied and the relationship between regional seismic tectonic and strongly felt earthquake,strong-moderate earthquake activity is analyzed. The obtained result shows that moderately strong seismic activity is closely related to the faults along NWW direction, NNW direction and NE to NNE direction.The earthquakes of about M5.0 are active in the secondary convex-concave conjoining zones of a big subsidence field, the basins of present-day tectonic activity, the contorted position of ramp slope of Moho discontinuity and the earthquakes of M>6.0 occur usually in subsidence field nearby a modern crustral uplift or in the transitional part of a huge convex-concave area. |
| |
| Keywords: | seismotectonics seismic activity Shiyan area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
