| 四川鲜水河断裂带上的一个地震活动空区 |
| |
| 引用本文： | 韩渭宾,黄圣睦.四川鲜水河断裂带上的一个地震活动空区[J].地震学报,1983,5(3):280-286. |
| |
| 作者姓名： | 韩渭宾 黄圣睦 |
| |
| 作者单位： | 四川省地震局 |
| |
| 摘 要： | 本文根据鲜水河断裂带自1900——1981年5级以上地震震中分布、6.5级以上地震的极震区或地震地裂缝带的展布,以及1967——1981年各次强震的余震分布,提出道孚——乾宁间出现缺震段.从弱震活动和地形变资料分析,认为这个缺震段不象是一个蠕动段.因此,可以认为这是一个地震活动空区,至少是一个第一类空区.根据统计关系推断,未来强震的最大震级可达7(1/2)级左右.
|
A SEISMIC GAP ON THE XIANSHUIHE FAULT,SICHUAN PROVINCE |
| |
| Affiliation: | Sichuan Provincial Seismological Bureau |
| |
| Abstract: | In this paper, based on the distribution of epicenters of earthquakes of magnitudes M 5 and the magistoseismic areas of earthquakes of M 6(1/2) occurred during the years from 1900 to 1981 as well as the distribution of the fracture zones of those earthquakes and the aftershocks of the major earthquakes occurred during the years from 1967 to 1981, it has been inferred that between Daofu and Gianning along the Xianshuihe Fault, a segment of seismic quiescence exists. In analysing the seismic activity of weak earthquakes of this area and the data of crustal deformation measurements, it does not seem to be a creeping portion of the fault. Therefore, it may be considered that this is a seismic gap, the first kind of Mogi, at least.According to statistical estimation, the maximum magnitude of the coming earthquake may be possibly 7(1/2). |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
|
点击此处可从《地震学报》下载全文 |
|
