| 用震源机制一致性作为描述地震活动性的新参数 |
| |
| 引用本文： | 陈颙.用震源机制一致性作为描述地震活动性的新参数[J].地球物理学报,1978,21(2):142-159. |
| |
| 作者姓名： | 陈颙 |
| |
| 作者单位： | 国家地震局地球物理研究所 |
| |
| 摘 要： | 本文根据近年来的一些强震震例,从震源机制角度分析了前震、余震和地震群的不同特点,指出在震源机制的一致程度方面,前震、余震和地震群有明显的差别,提出了描述一群地震活动性方面的一个“群体”参数--震源机制一致性,并试图给这个参数定量化.本文强调判断一群地震震源机制一致性时,用地震记录波形鉴别法常常是迅速方便的,还给出了一些用震源机制一致性参数确定地震危险性的实例.
|
| 关 键 词： | 前震 震源机制 余震 一致性 小地震 振幅比 地震活动性 初动符号 断层面 地震群 |
| 收稿时间： | 1977-01-31 |
CONSISTENCY OF FOCAL MECHANISM AS A NEW PARAMETER IN DESCRIBING SEISMIC ACTIVITY |
| |
| CHENG RONG.CONSISTENCY OF FOCAL MECHANISM AS A NEW PARAMETER IN DESCRIBING SEISMIC ACTIVITY[J].Chinese Journal of Geophysics,1978,21(2):142-159. |
| |
| Authors: | CHENG RONG |
| |
| Institution: | Institute of Geophysics, National Seismological Bureau |
| |
| Abstract: | From the point of view of focal mechanism, characteristics of foreshocks, aftershocks and earthquake swarms are analysed, based on observations of some of the strong earthquakes occurred in recent years. It is pointed out that there are considerable differences between the three. A "Group Parameter" - Consistency of focal mechanism has been suggested to describe the seismicity of a group of earthquakes and we try to make it more or less quantitative. It is emphasized that to identify the consistancy of focal mechanism for a group of earthquakes, one may find quick and convenient by just analysing the wave form of the seismic records. Besides, in this paper, some examples are also given for the assessment of earthquake risk by using the parameter mentioned above. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
|
