高朝军, 韩立波, 蒋长胜, 李志海. 2017: 博阿断裂西段重复地震识别及断层深部滑移速率研究. 地震学报, 39(3): 307-314. DOI: 10.11939/jass.2017.03.001
引用本文: 高朝军, 韩立波, 蒋长胜, 李志海. 2017: 博阿断裂西段重复地震识别及断层深部滑移速率研究. 地震学报, 39(3): 307-314. DOI: 10.11939/jass.2017.03.001
Gao Chaojun, Han Libo, Jiang Changsheng, Li Zhihai. 2017: Repeating earthquake identification and deep slip rates for western Bolokenu-Aqikekuduke fault. Acta Seismologica Sinica, 39(3): 307-314. DOI: 10.11939/jass.2017.03.001
Citation: Gao Chaojun, Han Libo, Jiang Changsheng, Li Zhihai. 2017: Repeating earthquake identification and deep slip rates for western Bolokenu-Aqikekuduke fault. Acta Seismologica Sinica, 39(3): 307-314. DOI: 10.11939/jass.2017.03.001

博阿断裂西段重复地震识别及断层深部滑移速率研究

Repeating earthquake identification and deep slip rates for western Bolokenu-Aqikekuduke fault

  • 摘要: 本文选取博阿断裂西段周围30 km范围内2010年1月—2015年12月期间9个台站记录到的1272次地震事件的波形记录,利用波形互相关技术从中识别出65组(231次)重复地震,并且基于这些重复地震事件估算该断层的滑移速率.结果显示:该区域重复地震比例为18.2%;博阿断裂阿拉山口—精河段、精河—新源段的平均滑移速率分别约为0.99 mm/a和1.35 mm/a,乌苏—石场段、巴仑台—乌什城段的平均滑移速率分别为1.36 mm/a和2.03 mm/a,这与GPS观测结果基本一致;深部滑移速率的极大值分布在2—10 km深度范围内,其中巴仑台—乌什城段在8 km深度处达到了极大值8.6 mm/a.

     

    Abstract: In this paper, the waveforms of 1272 earthquake events recorded by nine stations are selected in the western section of the Bolokenu-Aqikekuduke fault around 30 km during 2010-2015. Using cross-correlation analysis of waveforms, we identify 65 groups of repeating earthquakes. The results show that the repeating earthquakes make up 18.2% of total events. Furthermore, we obtain the average slip rate about 0.99 mm/a at the Alashankou-Jinghe section, 1.35 mm/a at the Jinghe-Xinyuan section, 1.36 mm/a at the Usu-Shichang section, and 2.03 mm/a at the Balguntay-Wushicheng section, which is consistent with GPS observations. The maximum deep slip rate appears at the depth ranging from 2 km to 10 km, and the Balguntay-Wushicheng section reaches a maximum of 8.6 mm/a at the depth of 8 km.

     

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