| Analysis of Spatial and Temporal Variation Characteristics of the b-value in the Hetao Seismic Belt |
| |
| 作者姓名： | Han Xiaoming Zhang Wentao Wang Shubo Zhao Xing Bao Jinzhe Li Juan |
| |
| 作者单位： | Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Anhui Province, Hefei 230000, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China |
| |
| 基金项目： | This research was sponsored by the Spark Program of Earthquake Sciences of China Earthquake Administration (XH15010Y). |
| |
| 摘 要： | Focusing on the b-value as the research target and under the theoretical framework that the b-value is determined by stress state and medium properties, the variation characteristics of the b-value in the Hetao seismic belt are analyzed. Earthquakes with ML≥1. 5,which have occurred in the Hetao seismic belt since 1970 are selected to conduct the quantitative detection of the non-uniform temporal change of Mcusing the EMR method. Based on the actual situation of seismic activity,the lower limit magnitude is set as ML2. 0 to calculate the b-value. The temporal variation of the b-value is calculated and scanned using the least square method. The results show that there is a good corresponding relationship between the temporal variation of the b-value,strong earthquake activity,network distribution and aftershock deletion. We also calculate and scan the spatial variation of the b-value by using maximum likelihood. The results show that the spatial difference is possibly caused by stress state and crustal medium properties. The tectonic dependence of the b-value is obvious. In addition,the sufficient earthquakes samples in each magnitude interval are still a key step to improve the calculation accuracy of the b-value.
|
| 关 键 词： | Hetao seismic belt b-value Spatial and temporal scanning Aftershock deletion Error analysis |
| 收稿时间： | 2015/8/7 0:00:00 |
| 修稿时间： | 2016/9/19 0:00:00 |
Analysis of Spatial and Temporal Variation Characteristics of the b-value in the Hetao Seismic Belt |
| |
| Han Xiaoming,Zhang Wentao,Wang Shubo,Zhao Xing,Bao Jinzhe,Li Juan.Analysis of Spatial and Temporal Variation Characteristics of the b-value in the Hetao Seismic Belt[J].Earthquake Research in China,2017,31(4):477-490. |
| |
| Authors: | Han Xiaoming Zhang Wentao Wang Shubo Zhao Xing Bao Jinzhe and Li Juan |
| |
| Institution: | Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Anhui Province, Hefei 230000, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China,Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China and Earthquake Administration of Inner Mongolia Autonomous Region, Hohhot 010010, China |
| |
| Abstract: | |
| |
| Keywords: | Hetao seismic belt b-value Spatial and temporal scanning Aftershock deletion Error analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
| 点击此处可从《中国地震研究》下载免费的PDF全文 |
|
