| 2018年5月6日称多5.3级地震序列重定位及发震构造分析 |
| |
| 引用本文： | 李启雷,李玉丽,刘文邦.2018年5月6日称多5.3级地震序列重定位及发震构造分析[J].地震地磁观测与研究,2019,40(3):1-6. |
| |
| 作者姓名： | 李启雷 李玉丽 刘文邦 |
| |
| 作者单位： | 中国西宁 810001 青海省地震局;中国西宁 810001 青海省地震局;中国西宁 810001 青海省地震局 |
| |
| 基金项目： | 青海省地震科学基金（项目编号：2019B02） |
| |
| 摘 要： | 采用双差定位法对2018年5月6日称多5.3级地震及其余震序列进行重新定位，至2018年7月15日共获取129个地震的重新定位结果。结果显示，称多5.3级地震序列主要呈NWW或NNW向分布，其中长轴沿NWW向展布，长约11 km，震源深度主要分布在6-12 km范围内，优势分布为8-11 km。此次地震的震源机制解为走滑型，最佳波形拟合深度为10.1 km。结合精定位、震源机制等综合分析，认为主破裂面走向呈NNW向，发震构造应为巴颜喀拉山主峰断裂。
|
| 关 键 词： | 称多5.3级地震 地震序列 双差定位 震源机制 发震构造 |
Relocation and its seismogenic structure of the Chengduo MS 5.3 earthquake sequence on May 6, 2018 |
| |
| Li Qilei,Li Yuli,Liu Wenbang.Relocation and its seismogenic structure of the Chengduo MS 5.3 earthquake sequence on May 6, 2018[J].Seismological and Geomagnetic Observation and Research,2019,40(3):1-6. |
| |
| Authors: | Li Qilei Li Yuli Liu Wenbang |
| |
| Institution: | Qinghai Earthquake Agency, Xining 810001, China |
| |
| Abstract: | In this article, the relocating of the aftershock sequence of the Chengduo MS 5.3 earthquake in Qinghai Province was implemented with the double difference relocation method. Up to July 15, 2018, totally 129 aftershocks were relocated. It shows that the Chengduo MS 5.3 earthquake sequence are mainly distributed along NWW direction or NNW direction with length of about 11 km along the long axis orienting NWW direction. The source depth distribution of most earthquakes is among 6-12 km with the advantage depth of 8-11 km. The focal mechanism solution of this earthquake is belonging to strike-slip type with the best-fit focal depth of 10.1 km. Combined with the comprehensive analysis of the precise location and the source mechanism, the seismogenic structure of the Chengduo MS 5.3 earthquake may be the main peak fault of Bayankala mountain. |
| |
| Keywords: | Chengduo MS 5 3 earthquake earthquake sequence double difference relocation method focal mechanism seismogenic structure |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《地震地磁观测与研究》浏览原始摘要信息 |
| 点击此处可从《地震地磁观测与研究》下载免费的PDF全文 |
