| 运用尾波干涉技术监测瑞昌—阳新MS4.6地震后地壳介质变化 |
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| 作者姓名： | 郭雨帆 董非非 查小惠 陈浩 王甘娇 董俊 |
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| 作者单位： | 江西省地震局，江西南昌330096 |
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| 基金项目： | 江西省防震减灾与工程地质灾害探测工程研究中心开放基金项目（SDGD202013）和地震科技星火计划项目（XH20032）联合资助。 |
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| 摘 要： | 基于2011年瑞昌—阳新MS4.6地震序列事件波形及其观测报告，采用双差重定位法、波形互相关法和尾波干涉法，筛选出了同时被黄梅台和九江台记录且波形互相关系数≥0.920的两组重复地震对:D1（2011-09-11 05:44 ML2.3和2011-10-24 08:06 ML2.2）和D2（2011-09-18 07:06 ML2.8和2011-10-2408:06 ML2.2），发现瑞昌—阳新MS4.6地震后1.5个月内（2011-09-11—10-24）震源区S波早期尾波波速增加。
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| 关 键 词： | 瑞昌—阳新MS4.6地震 重复地震 尾波干涉法 地壳介质变化 |
| 收稿时间： | 2021-10-31 |
Monitoring variations of crustal media after the MS4.6 Ruichang-Yangxin earthquake by coda wave interferometry |
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| Institution: | Jiangxi Earthquake Agency, Jiangxi Nanchang 330096, China |
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| Abstract: | Based on the event waveform data and its observation report of the 2011 Ruichang-Yangxin MS4.6 earthquake sequence processed by the double-difference method, waveform cross-correlation and coda wave interferometry, two groups of repeating earthquakes (cc≥0.920, recorded by station Huangmei and station Jiujiang) can be obtained: D1 (2011-09-11 05:44 ML2.3 and 2011-10-24 08:06 ML2.2) and D2 (2011-09-18 07:06 ML2.8 and 2011-10-24 08:06 ML2.2). It could be found that the velocity of early S wave coda increased within 1.5 months (2011-09-11—10-24) in source region after the MS4.6 Ruichang-Yangxin earthquake. |
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