2022年青海门源MS6.9地震震源机制解

来源 :地震科学进展 | 被引量 : 0次 | 上传用户：liyang12886

【摘要】

：

2022年1月8日,青海门源地区发生MS6.9地震,本文利用CAP方法反演了主震震源机制解和震源深度.结果显示,断层节面Ⅰ:走向191°/倾角62°/滑动角173°,节面Ⅱ:走向284°/倾角82°/滑动角21°.此次地震为走滑型地震,最佳矩心震源深度约3 km,矩震级为MW6.7.结合震源机制解和定位结果分析认为,节面Ⅱ可能为实际破裂面,本次地震发生在冷龙岭断裂和托莱山断裂的交汇部位,本次地震与2016年和1986年2次M6.4地震震源机制解不同,显示出该区域复杂的构造背景.

【作者】

：

韩立波

【机构】

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中国地震局地球物理研究所,北京 100081

【出处】

：

地震科学进展

【发表日期】

：

2022年2期

【关键词】

：

门源地震震源机制解震源深度

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2022年青海门源MS6.9地震震源机制解

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