基于PALM检测方法的地震构造背景分析

盛艳蕊; 王振宇; 周月玲

doi:10.11899/zzfy20240240

基于PALM检测方法的地震构造背景分析以2020年7月12日唐山5.1级地震为例

doi: 10.11899/zzfy20240240

盛艳蕊^{1, 2,},
王振宇³,
周月玲^{1, 2}

1.
河北省地震局, 石家庄 050021
2.
河北红山巨厚沉积与地震灾害国家野外科学观测研究站, 河北邢台 055350
3.
中国地震局地球物理研究所, 北京 100081

基金项目: 河北省地震星火计划项目（DZ2021121700005、DZ2023120800013）

详细信息

作者简介:
盛艳蕊，女，生于1983年。高级工程师。主要从事地震数据服务。E-mail：shengyr@hbdzj.gov.cn

计量
- 文章访问数: 11
- HTML全文浏览量: 7
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2024-12-12
- 录用日期: 2024-12-12
- 网络出版日期: 2025-09-09

Geological Background Analysis of the 5.1 Magnitude Earthquake in Tangshan on July 12, 2020, Based on the PALM Detection Method

Sheng Yanrui^{1, 2
,},
Wang Zhenyu³,
Zhou Yueling^{1, 2}

1.
Hebei Earthquake Agency, Shijiazhuang 050021, China
2.
Hebei Hongshan National Observatory on Thick Sediments and Seismic Hazards, Xingtai 055350, Hebei, China
3.
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China

摘要

摘要: 本文利用PALM（Phase picking, Association, Location, and Matchedfilter）全流程地震编目框架构建了2020年7月12日唐山5.1级地震前4天至后13天的高分辨率地震目录，共检测出135次地震事件，揭示了唐山地震序列的空间分布特征。从剖面看，唐山5.1级地震发震断层近直立，主震发生在深部15 km处，余震分布呈现从深到浅的趋势，整体分布呈现NW向，在东南部深度15 km处出现了微震丛集，定位后的地震分布与震源机制解NW向界面一致性较好。结合该区的V_P和V_P/V_S波速比分析，显示地震震中成北西向展布，具有较好的收敛性，在深度8～12 km和20 km处存在着高波速比特征。
- PALM检测方法 /
- 地震目录 /
- 地震定位 /
- 波速比
Abstract: The template matching process of PALM is used to automatically create a high-resolution earthquake catalog for the Tangshan 5.1 earthquake that occurred on July 12, 2020, covering the period from 4 days before to 13 days after the event in this paper. A total of 135 earthquake events were detected, revealing the spatial distribution of the Tangshan earthquake sequence. From the cross-section view, the fault that triggered the Tangshan 5.1 earthquake is nearly vertical, with the main shock occurring at a depth of 15 km. The aftershock distribution shows a trend from deeper to shallower depths, with an overall NW orientation. A microseismic cluster was observed at a depth of 15 km in the southeast．The distribution of the located earthquakes is in good agreement with the NW-oriented fault mechanism solutions. The analysis of the V_P and V_P/V_S velocity ratios in the area shows that the earthquake epicenter is distributed in a northwest direction, exhibiting good convergence, with high velocity ratio characteristics present at depths of 8～12 km and 20 km.
- PALM detection method /
- Earthquake catalog /
- Earthquake location /
- V_P/V_S ratio

HTML全文

图 1 研究区地质构造及测震台站分布

Figure 1. Geological structure and seismological station distribution map of the study area

下载: 全尺寸图片幻灯片

图 2 PALM工作流程（Zhou等，2022）

Figure 2. PALM workflow diagram（Zhou et al.，2022）

下载: 全尺寸图片幻灯片

图 3 PAL目录定位的地震分布

Figure 3. Seismic distribution of PAL directory location

下载: 全尺寸图片幻灯片

图 4 河北台网地震目录定位结果（左）和MESS+HypoDD定位结果（右）

Figure 4. Earthquake location results from the Hebeiseismic network （left） and MESS+HypoDD Location results （right）

下载: 全尺寸图片幻灯片

图 5 唐山5.1级地震M-T图

Figure 5. M-T diagram of the 5.1 magnitude earthquake in Tangshan from July 8 to July 25, 2020

下载: 全尺寸图片幻灯片

图 6 唐山5.1级地震精定位震中分布及剖面图

Figure 6. Distribution and profile of the epicenter of the 5.1 magnitude earthquake in Tangshan

下载: 全尺寸图片幻灯片

图 7 定位结果投影在本区V_P速度结构图以及垂直切面位置图

Figure 7. Projection of positioning results on the V_P velocity structure map of this area and the vertical cross-section location map

下载: 全尺寸图片幻灯片

图 8 地震震中投影在V_P速度结构上的3条垂直切面

Figure 8. Three vertical cross-sections of the earthquake epicenter projected onto the V_P velocity structure

下载: 全尺寸图片幻灯片

图 9 地震震中投影在V_P/V_S波速比上的3条垂直切面

Figure 9. Three vertical cross-sections of the earthquake epicenter projected onto the V_P/V_S velocity ratio

下载: 全尺寸图片幻灯片

表 1 定位所用一维分层速度模型

Table 1. One-dimensional layered velocity model used for location

深度/km 0 5.0 10.0 15.0 20.0 25.0 35.0

P波/(km·s⁻¹) 5.2 5.8 6.0 6.3 6.5 6.7 7.0

下载: 导出CSV

参考文献(28)

曹筠, 周依, 高晨等, 2024. 2020年7月12日河北唐山5.1级地震发震断层判定及其区域构造意义. 地震地质, 46(5): 993−1011.

Cao J., Zhou Y., Gao C., et al., 2024. Seismogenic fault of the Tangshan M_S5.1 earthquake on July 12, 2020 and its implications for regional tectonics. Seismology and Geology, 46(5): 993−1011. (in Chinese)

段永红, 王夫运, 张先康等, 2016. 华北克拉通中东部地壳三维速度结构模型(HBCrust1.0). 中国科学: 地球科学, 46(6): 845−856.

Duan Y. H., Wang F. Y., Zhang X. K., et al., 2016. Three-dimensional crustal velocity structure model of the middle-eastern North China Craton (HBCrust1.0). Science China Earth Sciences, 59(7): 1477−1488. (in Chinese)

郭慧, 江娃利, 谢新生, 2011. 钻孔与探槽揭示1976年河北唐山M_S7.8地震发震构造晚第四纪强震活动. 中国科学: 地球科学, 41(7): 1009−1028.

Guo H., Jiang W. L., Xie X. S., 2011. Late-Quaternary strong earthquakes on the seismogenic fault of the 1976 M_S7.8 Tangshan earthquake, Hebei, as revealed by drilling and trenching. Science China Earth Sciences, 54(11): 1696−1715. (in Chinese)

虢顺民, 李志义, 程绍平等, 1977. 唐山地震区域构造背景和发震模式的讨论. 地质科学, (4): 305−321.

Guo S. M., Li Z. Y., Cheng S. P., et al., 1977. Discussion: on the recional structural background and the seismogenic model of the Tangshan earthquake. Scientia Geologica Sinica, (4): 305−321. (in Chinese)

江功劲, 张丽芬, 赵艳南等, 2024. 基于PALM自动检测方法的三峡库区微震活动研究. 大地测量与地球动力学, 44(7): 753−758.

Jiang G. J., Zhang L. F., Zhao Y. N., et al., 2024. Research on microseismic activity in three gorges reservoir based on PALM automatic detection method. Journal of Geodesy and Geodynamics, 44(7): 753−758. (in Chinese)

刘保金, 曲国胜, 孙铭心等, 2011. 唐山地震区地壳结构和构造: 深地震反射剖面结果. 地震地质, 33(4): 901−912.

Liu B. J., Qu G. S., Sun M. X., et al., 2011. Crustal structures and tectonics of Tangshan earthquake area: results from deep seismic reflection profiling. Seismology and Geology, 33(4): 901−912. (in Chinese)

刘昌铨, 嘉世旭, 1986. 唐山地震区地壳上地幔结构特征−二维非均匀介质中理论地震图计算和结果分析. 地震学报, 8(4): 341−353.

Liu C. Q., Jia S. X., 1986. Structural property of the crust and the upper mantle in the Tangshan earthquake Regiona method of computing body wave theoretical seismogram and the result of analysis of 2-D inhomogeneous media. Acta Seismologica Sinica, 8(4): 341−353. (in Chinese)

刘芳, 孙冬军, 周一剑等, 2023. 基于自动检测方法的福建地区断裂带地震活动性研究. 地震学报, 45(3): 538−549.

Liu F., Sun D. J., Zhou Y. J., et al., 2023. Seismicity characteristics of fault zones in Fujian area based on automatic seismic detection method. Acta Seismologica Sinica, 45(3): 538−549. (in Chinese)

刘国栋, 顾群, 史书林等, 1983. 京津唐渤和周围地区地壳上地幔电性结构及其与地震活动性的关系. 地球物理学报, 26(2): 149−157. doi: 10.3321/j.issn:0001-5733.1983.02.006

Liu G. D., Gu Q., Shi S. L., et al., 1983. The electrical structure of the crust and upper mantle and its relationship with seismicity in the Beijing-Tianjin-Tangshan region and adjacent area. Acta Geophysica Sinica, 26(2): 149−157. (in Chinese) doi: 10.3321/j.issn:0001-5733.1983.02.006

邵志刚, 2022. 中国震例. 2020. 北京: 地震出版社, 282−356.

Shao Z. G. , 2022. Earthquake cases in China. Beijing: Seismological Press, 282−356. (in Chinese)

盛艳蕊, 张子广, 丁志华等, 2020. 唐山断裂带土壤气地球化学特征分析. 震灾防御技术, 15(2): 452−462.

Sheng Y. R., Zhang Z. G., Ding Z. H., et al., 2020. Analysis of geochemical characteristics of soil gas in the Tangshan fault. Technology for Earthquake Disaster Prevention, 15(2): 452−462. (in Chinese)

唐杰, 张素欣, 冯向东等, 2023. 2020年唐山5.1级地震发震背景分析. 地震, 43(4): 37−49.

Tang J., Zhang S. X., Feng X. D., et al., 2023. The seismogenic background of the 2020 Tangshan M5.1 earthquake. Earthquake, 43(4): 37−49. (in Chinese)

王椿镛, 段永红, 吴庆举等, 2016. 华北强烈地震深部构造环境的探测与研究. 地震学报, 38(4): 511−549.

Wang C. Y., Duan Y. H., Wu Q. J., et al., 2016. Exploration on the deep tectonic environment of strong earthquakes in North China and relevant research findings. Acta Seismologica Sinica, 38(4): 511−549. (in Chinese)

王想, 周依, 陈婷等, 2021. 2020年7月12日唐山5.1级地震分析. 地震工程学报, 43(6): 1280−1287.

Wang X., Zhou Y., Chen T., et al., 2021. Analysis of the Tangshan M5.1 earthquake on July 12, 2020. China Earthquake Engineering Journal, 43(6): 1280−1287. (in Chinese)

王亚玲, 蔡玲玲, 李冬圣等, 2021. 2020年7月12日河北唐山M_S5.1地震发震构造及唐山断裂带三维模型. 华北地震科学, 39(3): 83−91.

Wang Y. L., Cai L. L., Li D. S., et al., 2021. The seismogenic structure of the Hebei Tangshan M_S5.1 earthquake on July 12, 2020 and three-dimensional modeling of Tangshan fault zone. North China Earthquake Sciences, 39(3): 83−91. (in Chinese)

闻学泽, 马胜利, 2006. 唐山大地震对相邻断裂段地震复发的影响. 自然科学进展, 16(10): 1346−1350.

吴萍萍, 丁志峰, 谭捍东等, 2021. 基于V_P/V_S波速比模型约束的张渤地震带深部电性结构研究. 地球物理学报, 64(8): 2716−2732.

Wu P. P., Ding Z. F., Tan H. D., et al., 2021. Inversion MT data for the electrical structure beneath the Zhangbo seismic belt based on constraint of the V_P/V_S model. Chinese Journal of Geophysics, 64(8): 2716−2732. (in Chinese)

徐志国, 梁姗姗, 郭铁龙等, 2021. 2020年7月12日唐山古冶M_S5.1地震震源参数. 地震地磁观测与研究, 42(3): 25−33.

Xu Z. G., Liang S. S., Guo T. L., et al., 2021. Source parameters of Guye M_S5.1 earthquake in Tangshan on July 12, 2020. Seismological and Geomagnetic Observation and Research, 42(3): 25−33. (in Chinese)

杨歧焱, 吴庆举, 盛艳蕊等, 2018. 张渤地震带及邻区近震体波成像及孕震环境分析. 地球物理学报, 61(8): 3251−3262.

Yang Q. Y., Wu Q. J., Sheng Y. R., et al., 2018. Regional seismic body wave tomography and deep seismogenic environment beneath Zhangbo seismic belt and its adjacent area. Chinese Journal of Geophysics, 61(8): 3251−3262. (in Chinese)

姚远, 杨周胜, 姜金钟等, 2022. 云南小江断裂带中段的微震活动性−−PALM自动检测方法在密集台阵中的应用. 北京大学学报(自然科学版), 58(5): 829−838.

Yao Y., Yang Z. S., Jiang J. Z., et al., 2022. Microseismicity in central Xiaojiang fault zone, Yunnan: application of PALM on dense seismic network. Acta Scientiarum Naturalium Universitatis Pekinensis, 58(5): 829−838. (in Chinese)

尤惠川, 徐锡伟, 吴建平等, 2002. 唐山地震深浅构造关系研究. 地震地质, 24(4): 571−582.

You H. C., Xu X. W., Wu J. P., et al., 2002. Study on the relationship between shallow and deep structures in the 1976 Tangshan earthquake area. Seismology and Geology, 24(4): 571−582. (in Chinese)

余海琳, 2023. 基于密集台阵的古冶-滦县地区中等地震发震构造研究. 廊坊: 防灾科技学院.

Yu H. L., 2023. A study on the tectonics of moderate earthquakes in the Guye-Luanxian area based on a dense array. Langfang: Institute of Disaster Prevention. (in Chinese)

于湘伟, 陈运泰, 王培德, 2003. 京津唐地区中上地壳三维P波速度结构. 地震学报, 25(1): 1−14.

Yu X. W., Chen Y. T., Wang P. D., 2003. Three-dimensional P wave velocity structure in Beijing-Tianjin-Tangshan area. Acta Seismologica Sinica, 25(1): 1−14. (in Chinese)

张素欣, 边庆凯, 张子广等, 2020. 唐山断裂北段地震分布特征及其构造意义. 地震研究, 43(2): 270−277.

Zhang S. X., Bian Q. K., Zhang Z. G., et al., 2020. Seismic distribution and tectonic significance of the northern segment of the Tangshan fault. Journal of Seismological Research, 43(2): 270−277. (in Chinese)

Huang J. L., Zhao D. P., 2009. Seismic imaging of the crust and upper mantle under Beijing and surrounding regions. Physics of the Earth and Planetary Interiors, 173(3-4): 330−348. doi: 10.1016/j.pepi.2009.01.015

Klein, F. W. , 2002. User’s guide to HYPOINVERSE-2000, a Fortran program to solve for earthquake locations and magnitudes. Menlo Park: U. S. Geological Survey.

Waldhauser, F. , 2001. hypoDD-A program to compute double-difference hypocenter locations. Menlo Park: U. S. Geological Survey.

Zhou Y. J., Yue H., Fang L. H., et al., 2022. An earthquake detection and location architecture for continuous seismograms: phase picking, association, location, and matched filter (PALM). Seismological Research Letters, 93(1): 413−425. doi: 10.1785/0220210111

施引文献

资源附件(0)

访问统计