2025定日MS6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征

doi:10.3969/j.issn.0253-4967.2025.03.20250018

地震地质 ›› 2025, Vol. 47 ›› Issue (3): 761-776.DOI: 10.3969/j.issn.0253-4967.2025.03.20250018

2025定日M_S6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征

孟恒舟¹^,³⁾(), 杨光亮¹^,²^,³⁾^,^*(), 秦海涛¹^,³⁾, 谈洪波¹^,²^,³⁾, 刘胜¹^,³⁾, 王嘉沛¹^,²^,³⁾, 黄敏夫¹^,²^,³⁾, 张明辉¹^,²^,³⁾

1)中国地震局地震研究所, 武汉 430071
2)湖北省地震局, 武汉 430071
3)中国地震局地震大地测量重点实验室, 武汉 430071

收稿日期:2025-01-24 修回日期:2025-05-06 出版日期:2025-06-20 发布日期:2025-08-14
通讯作者: *杨光亮, 男, 1980年生, 研究员, 主要从事重力探测、时变重力及地球动力学方面的研究, E-mail: vfory@aliyun.com。
作者简介:
孟恒舟, 男, 1999年生, 现为中国地震局地震研究所固体地球物理学专业在读硕士研究生, 主要从从事时变重力及地球动力学等方面的研究, E-mail: menghengzhou23@mails.ucas.ac.cn。
基金资助:
国家自然科学基金(42174104); 科技部科技基础资源调查专项(2023FY10150502); 湖北省自然科学基金计划项目(2022CFB350)

HORIZONTAL DEVIATORIC STRESS AND ELASTIC LITHOSPHERE THICKNESS CHARACTERISTICS OF THE EPICENTER AND ITS ADJACENT AREAS OF THE DINGRI M_S6.8 EARTHQUAKE, XIZANG, CHINA

MENG Heng-zhou¹^,³⁾(), YANG Guang-liang¹^,²^,³⁾^,^*(), QIN Hai-tao¹^,³⁾, TAN Hong-bo¹^,²^,³⁾, LIU Sheng¹^,³⁾, WANG Jia-pei¹^,²^,³⁾, HUANG Min-fu¹^,²^,³⁾, ZHANG Ming-hui¹^,²^,³⁾

1)Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
2)Hubei Earthquake Agency, Wuhan 430071, China
3)Key Laboratory of Earthquake Geodesy, China Earthquake Administration, Wuhan 430071, China

Received:2025-01-24 Revised:2025-05-06 Online:2025-06-20 Published:2025-08-14

摘要/Abstract

摘要： 2025年1月7日西藏定日发生 M_S6.8 地震, 为深入分析此次地震的孕震背景, 文中基于WGM2012重力场模型数据、 ETOP01地形数据及CRUST1.0地壳模型, 计算了定日地震震源区及邻区不同深度的偏应力、弹性岩石圈厚度(T_e)和载荷比(F)。结果显示: 研究区偏应力呈南北分异特征, 以藏南拆离断裂带为界, 南部整体较高(>15MPa), 而北部仅在申扎-定结、亚东-谷露等断裂带附近集中表现出高值。随着深度增加, 偏应力逐渐减小, 尤其在50km深度, 偏应力均低于8MPa; T_e由西南部喜马拉雅块体处的70km沿NE向至拉萨块体减小到17km, 表现出明显的横向不均匀性; 区内载荷比较小(F<0.4), 整体以地表载荷为主。结合震例分析认为: 定日地震震中附近偏应力较高(>10MPa), 主要集中在0~20km深度范围内, 低载荷比(F<0.1), 地形或浅部地壳密度变化在挠曲变形中占主导。此外, 震中还处于弹性岩石圈厚度过渡带, 应力抵御能力不均, 整体表现出浅源破裂的可能性。

关键词: 定日地震, 偏应力, 弹性岩石圈厚度, 重力异常

Abstract:

According to the China Seismic Network, a magnitude M_S6.8 earthquake occurred on January 7, 2025, in Dingri, Tibet. The epicenter was located near the Shenza-Dingjie rift(87.45°E, 28.50°N)at a focal depth of 10km. This earthquake is attributed to compressional forces resulting from the ongoing convergence between the Indian and Eurasian plates, which induce east-west(EW)extensional stress within the Tibetan plateau. In southern Tibet, a series of north-south(NS)trending rift valleys have developed in response to these tectonic processes. In these regions, variations in lithospheric density generate deviatoric stress, which closely correlates with the spatial distribution of seismicity. Areas exhibiting high deviatoric stress tend to experience more frequent tectonic activity. Furthermore, the elastic thickness of the lithosphere(T_e), a key indicator of lithospheric strength and stability, is generally lower in seismically active zones, particularly within transition zones between strong and weak lithosphere. Therefore, analyzing deviatoric stress and T_e in the study area is essential for understanding the mechanisms behind the Dingri earthquake and related seismic phenomena.

To investigate the seismo-tectonic background of this event, this study constructs an equilibrium equation for deviatoric stress based on gravity field data. The admittance and coherence method is applied to estimate deviatoric stress at various depths, elastic lithospheric thickness(T_e), and load ratio(F), using the WGM2012 gravity field model, ETOPO1 topographic data, and CRUST1.0 crustal structure data. The study further analyzes the coupling between deviatoric stress and regional geological structures, examines the spatial distribution of T_e and its tectonic implications, and evaluates the influence of load ratio(F)on deviatoric stress estimation. These analyses form the basis for a comprehensive discussion of the focal characteristics of the Dingri earthquake.

Our results indicate that deviatoric stress in the study area exhibits a clear south-north gradient, with higher values(>15MPa)concentrated in the southern region, particularly south of the Yarlung Zangbo Fault. In the north, elevated stress values are primarily associated with major fault zones such as the Shenza-Dingjie and Yadong-Gulu faults. Deviatoric stress decreases with depth, showing a marked decline at 50km. The elastic lithosphere thickness is generally greater than 40km across the region, with higher values observed in the central and southern areas, consistent with the subsidence and underthrusting of the Indian plate along the southern margin of the plateau. In contrast, lower T_e values in the northeastern part of the study area are likely linked to rifting and lithospheric extension. The load ratio(F)varies between 0 and 1, with surface loads(F<0.4)dominating most of the region. However, higher values are observed in the northern segment of the Yadong-Gulu fault zone, suggesting a significant contribution from lower crustal or upper mantle processes. High load ratios can introduce uncertainties in deviatoric stress estimates, particularly in regions of active deep-seated tectonism.

The epicenter of the Dingri M_S6.8 earthquake is situated within the Shenza-Dingjie rift zone. The stress regime in this area is dominated by strike-slip tectonics, with NNW-SSE compression and NEE-SWW extension. Under this stress configuration, NS-trending faults near the epicenter are susceptible to normal faulting. Deviatoric stress values at crustal depths of 0, 10, 20, 30, and 50km are 11.45MPa, 8.46MPa, 4.36MPa, 2.86MPa, and 1.19MPa, respectively. These results indicate that deviatoric stress is predominantly concentrated within the upper 20km of the crust and is oriented mainly in the NNE direction, consistent with the regional tectonic stress field. Additionally, the epicenter lies within a transitional zone of elastic lithospheric thickness, where stress resistance varies, providing favorable conditions for shallow, NS-oriented normal faulting.

Key words: Dingri earthquake, regional stress, elastic lithosphere thickness, gravity anomaly

孟恒舟, 杨光亮, 秦海涛, 谈洪波, 刘胜, 王嘉沛, 黄敏夫, 张明辉. 2025定日M_S6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征[J]. 地震地质, 2025, 47(3): 761-776.

MENG Heng-zhou, YANG Guang-liang, QIN Hai-tao, TAN Hong-bo, LIU Sheng, WANG Jia-pei, HUANG Min-fu, ZHANG Ming-hui. HORIZONTAL DEVIATORIC STRESS AND ELASTIC LITHOSPHERE THICKNESS CHARACTERISTICS OF THE EPICENTER AND ITS ADJACENT AREAS OF THE DINGRI M_S6.8 EARTHQUAKE, XIZANG, CHINA[J]. SEISMOLOGY AND GEOLOGY, 2025, 47(3): 761-776.

图/表 9

图1 研究区地形与主要构造 F1当惹雍错-定日断裂带; F2申扎-定结断裂带; F3亚东-谷露断裂带; F4雅鲁藏布江断裂; F5藏南拆离断裂带, 以雅鲁藏布江裂为界, 北部为拉萨块体, 南部为喜马拉雅块体。红色圆形代表此次定日 MS6.8 地震震中, 红色实线为断裂, 灰色圆形为研究区历史地震震中

Fig. 1 Topography and major structures of the study area.

图2 研究区重力异常、地壳厚度数据 a 布格重力异常; b 地壳厚度

Fig. 2 Gravity anomalies and crustal thickness data of the study area.

表1 物理量及参考值

Table1 Physical parameters and reference values

参数	取值
杨氏模量E/GPa	100
万有引力常数G/m³·(kg^-1·s^-2)	6.672 59×10^-11
泊松比ν	0.25
重力加速度g/m·s^-2	9.8
地幔密度ρ_m/g·cm^-3	3.27

图3 应力方向对比图 a 本文计算偏应力与最大主应力的平均方向结果, 平均应力数据来自国家数据科学中心(胡辛平, 2025); b 应力方向偏差统计结果

Fig. 3 Comparison of stress directions.

图4 区内弹性岩石圈厚度和载荷比误差分布图

Fig. 4 Error distribution of elastic lithospheric thickness and load ratio in the study area.

图5 研究区偏应力与地震分布黄色箭头代表偏应力的方向

Fig. 5 Deviatonic stress and earthquake distribution in the study area.

图6 研究区弹性岩石圈厚度与地震分布

Fig. 6 Elastic lithosphere thickness and earthquake distribution in the study area.

图7 研究区载荷比与地震分布

Fig. 7 Load ratio and earthquake distribution in the study area.

图8 不同深度的偏应力特征 a-d分别代表了研究区10km、 20km、 30km、 50km深度的偏应力

Fig. 8 Tectonic stress characteristics at different depths.

参考文献 54

[1]	郭飞霄, 肖云, 苗岳旺. 2015. 利用EGM2008模型和地面实测重力资料反演川滇地区构造应力场[J]. 大地测量与地球动力学, 35(3): 445-448.
	GUO Fei-xiao, XIAO Yun, MIAO Yue-wang. 2015. Inversion of tectonic stress field in Sichuan-Yunnan area using EGM2008 model and ground gravity observation[J]. Journal of Geodesy and Geodynamics, 35(3): 445-448 (in Chinese).
[2]	胡敏章, 金涛勇, 郝洪涛, 等. 2020. 青藏高原东南缘岩石圈有效弹性厚度及其构造意义[J]. 地球物理学报, 63(3): 969-987. DOI
	HU Min-zhang, JIN Tao-yong, HAO Hong-tao, et al. 2020. Lithospheric effective elastic thickness and its tectonic significance in the southeastern Qinghai-Tibet Plateau[J]. Chinese Journal of Geophysics, 63(3): 969-987 (in Chinese).
[3]	胡幸平. 2025. 西藏定日6.8级地震周边构造应力数据场[DB]. 国家地震科学数据中心( http://data.earthquake.cn
	HU Xing-ping. 2025. Tectonic stress data field around the Dingri M_S6.8 Earthquake, Tibet[DB]. National Earthquake Data Center.
[4]	李忠亚, 胡敏章, 王勇, 等. 2022. 青藏高原及周边区域岩石圈重力势能及其产生的偏应力场[J]. 地球物理学报, 65(4): 1214-1228.
	LI Zhong-ya, HU Min-zhang, WANG Yong, et al. 2022. Lithospheric gravitational potential energy and its contribution to the tectonic stress field in the Tibetan plateau and its surrounding regions[J]. Chinese Journal of Geophysics, 65(4): 1214-1228 (in Chinese).
[5]	黎哲君. 2012. 基于均衡重力异常的华北地区构造活动特征研究[D]. 武汉: 中国地震局地震研究所:55.
	LI Zhe-jun. 2012. Study on the tectonic activity characteristics in North China based on gravity anomalies[D]. Institute of Seismology, China Earthquake Administration, Wuhan: 55 (in Chinese).
[6]	毛经伦, 李辉, 祝意青, 等. 2019. 利用EGM2008地球重力场模型研究川西地区水平构造应力场[J]. 大地测量与地球动力学, 39(3): 307-312.
	MAO Jing-lun, LI Hui, ZHU Yi-qing, et al. 2019. Study of the horizontal tectonic stress field in the Western Sichuan region using the EGM2008 Earth gravity model[J]. Journal of Geodesy and Geodynamics, 39(3): 307-312 (in Chinese).
[7]	苏子旺, 鲁宝亮, 李柏森, 等. 2024. 青藏高原东北缘岩石圈有效弹性厚度与地震分布关系[J]. 地球物理学报, 67(2): 520-533.
	SU Zi-wang, LU Bao-liang, LI Bai-shen, et al. 2024. Relationship between the lithosphere effective elastic thickness and earthquake distribution in the northeastern margin of the Tibetan plateau[J]. Chinese Journal of Geophysics, 67(2): 520-533 (in Chinese).
[8]	杨光亮, 申重阳, 黎哲君, 等. 2020. 巴颜喀拉地块东部及邻区重力均衡与岩石圈有效弹性厚度[J]. 地球物理学报, 63(3): 956-968. DOI
	YANG Guang-liang, SHEN Chong-yang, LI Zhe-jun, et al. 2020. Gravity isostasy and effective elastic thickness of the eastern Bayan Har block and adjacent areas[J]. Chinese Journal of Geophysics, 63(3): 956-968 (in Chinese).
[9]	游永雄. 1994. 重力场转换区域构造应力场的研究[J]. 地球物理学报, S2: 259-271.
	YOU Yong-xiong. 1994. A research on the conversion of gravity field into regional tectonic stress field[J]. Chinese Journal of Geophysics, S2:259-271 (in Chinese).
[10]	张楠, 王静, 余思涵, 等. 2023. 青藏高原东北缘现今块体应变率与活动断裂滑动亏损[J]. 大地测量与地球动力学, 43(7): 661-668.
	ZHANG Nan, WANG Jing, YU Si-han, et al. 2023. Characteristics of current block strain rate and active fault slip deficit in the northeastern margin of the Tibetan plateau[J]. Journal of Geodesy and Geodynamics, 43(7): 661-668 (in Chinese).
[11]	郑勇, 李永东, 熊熊, 等. 2012. 华北克拉通岩石圈有效弹性厚度及其各向异性[J]. 地球物理学报, 55(11): 3576-3590.
	ZHENG Yong, LI Yong-dong, XIONG Xiong, et al. 2012. Effective lithospheric thickness and its anisotropy in the North China Craton [G]. Chinese Journal of Geophysics, 55(11): 3576-3590 (in Chinese).
[12]	Amante C. 2009. ETOPO1 1 arc-minute global relief model: Procedures, data sources and analysis[G]. US Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center, Marine Geology and Geophysics Division: 19.
[13]	Armijo R, Tapponnier P, Mercier J L, et al. 1986. Quaternary extension in southern Tibet: Field observations and tectonic implications[J]. Journal of Geophysical Research, 91(B14): 13803-13872.
[14]	Audet P. 2019. PlateFlex: Software for mapping the elastic thickness of the lithosphere(Version v0.1.0)[CP]. Zenodo.
[15]	Audet P, Bürgmann R. 2011. Dominant role of tectonic inheritance in supercontinent cycles[J]. Nature Geoscience, 4(3): 184-187.
[16]	Bao X, Song X, Li J. 2015. High-resolution lithospheric structure beneath Mainland China from ambient noise and earthquake surface-wave tomography[J]. Earth and Planetary Science Letters, 417: 132-141.
[17]	Bian S, Gong J, Zuza A V, et al. 2020. Late Pliocene onset of the Cona rift, eastern Himalaya, confirms eastward propagation of extension in Himalayan-Tibetan orogen[J]. Earth and Planetary Science Letters, 544:116383.
[18]	Bischoff S H, Flesch L M. 2018. Normal faulting and viscous buckling in the Tibetan plateau induced by a weak lower crust[J]. Nature Communications, 9(1): 4952. DOI PMID
[19]	Bonvalot S, Balmino G, Briais A, et al. 2012. World Gravity Map: A set of global complete spherical Bouguer and isostatic anomaly maps and grids[DB]. BGI-CGMWCNES-IRD.
[20]	Bürgmann R, Dresen G. 2008. Rheology of the lower crust and upper mantle: Evidence from rock mechanics, geodesy, and field observations[J]. Annual Review of Earth and Planetary Sciences, 36: 531-567.
[21]	Byerlee J. 1978. Friction of Rocks[J]. Pure and Applied Geophysics, 116(4-5): 615-626.
[22]	Camelbeeck T, De Viron O, Van Camp M, et al. 2013. Local stress sources in Western Europe lithosphere from geoid anomalies[J]. Lithosphere, 5(3): 235-246.
[23]	Chen B, Chen C, Kaban M K, et al. 2013. Variations of the effective elastic thickness over China and surroundings and their relation to the lithosphere dynamics[J]. Earth and Planetary Science Letters, 363: 61-72.
[24]	Chen B, Liu J, Chen C, et al. 2015. Elastic thickness of the Himalayan-Tibetan orogen estimated from the fan wavelet coherence method, and its implications for lithospheric structure[J]. Earth and Planetary Science Letters, 409(10): 1-14.
[25]	Chung S L, Chu M F, Zhang Y, et al. 2005. Tibetan tectonic evolution inferred from spatial and temporal variations in post-collisional magmatism[J]. Earth-Science Reviews, 68(3-4): 173-196.
[26]	Comeau M J, Becken M, Käufl J S, et al. 2020. Evidence for terrane boundaries and suture zones across Southern Mongolia detected with a 2-dimensional magnetotelluric transect[J]. Earth, Planets and Space, 72: 5.
[27]	Deng Y, Tesauro M. 2016. Lithospheric strength variations in Mainland China: Tectonic implications[J]. Tectonics, 35: 2313-2333.
[28]	Flesch L M, Haines A J, Holt W E. 2001. Dynamics of the India-Eurasia collision zone[J]. Journal of Geophysical Research, 106(B8): 16435-16460.
[29]	Flesch L M, Kreemer C. 2010. Gravitational potential energy and regional stress and strain rate fields for continental plateaus: Examples from the central Andes and Colorado Plateau[J]. Tectonophysics, 482(1-4): 182-192.
[30]	Forsyth D W. 1985. Subsurface loading and estimates of the flexural rigidity of continental lithosphere[J]. Journal of Geophysical Research, 90: 12623-12632.
[31]	Ghosh A, Holt W E. 2012. Plate motions and stresses from global dynamic models[J]. Science, 335(6070): 838-843. DOI PMID
[32]	Ghosh A, Holt W E, Flesch L M, et al. 2006. Gravitational potential energy of the Tibetan plateau and the forces driving the Indian plate[J]. Geology, 34(5): 321.
[33]	Ghosh A, Holt W E, Wen L. 2013. Predicting the lithospheric stress field and plate motions by joint modeling of lithosphere and mantle dynamics[J]. Journal of Geophysical Research: Solid Earth, 118(1): 346-368.
[34]	Ghosh A, Holt W E, Wen L, et al. 2008. Joint modeling of lithosphere and mantle dynamics elucidating lithosphere-mantle coupling[J]. Geophysical Research Letters, 35(16): L16309.
[35]	Heidbach O, Rajabi M, Cui X, et al. 2018. The world stress map database release 2016: Crustal stress pattern across scales[J]. Tectonophysics, 744: 484-498.
[36]	Jay C N, Flesch L M, Bendick R O. 2017. Kinematics and dynamics of the Pamir, Central Asia: Quantifying surface deformation and force balance in an intracontinental subduction zone[J]. Journal of Geophysical Research: Solid Earth, 122(6): 4741-4762.
[37]	Jiang G, Hu S, Shi Y, et al. 2019. Terrestrial heat flow of continental China: Updated dataset and tectonic implications[J]. Tectonophysics, 753: 36-48.
[38]	Jin S, Sheng Y, Comeau M J, et al. 2022. Relationship of the crustal structure, rheology, and tectonic dynamics beneath the Lhasa-Gangdese Terrane(Southern Tibet)based on a 3-D electrical model [J]. Journal of Geophysical Research: Solid Earth, 127(11): e2022JB024318.
[39]	Laske G, Masters G, Ma Z, et al. 2013. Update on CRUST1.0-A 1-degree global model of Earth’s crust[C]. Geophysical Research Abstracts, EGU: 15.
[40]	Li J, Song X. 2018. Tearing of Indian mantle lithosphere from high-resolution seismic images and its implications for lithosphere coupling in southern Tibet[J]. Proceedings of the National Academy of Sciences of the United States of America, 115(33): 8296-8300. DOI PMID
[41]	Li W, Yang Z, Chiaradia M, et al. 2021. Enrichment nature of ultrapotassic rocks in southern Tibet inherited from their mantle source[J]. Journal of Petrology, 62(8): 1-15.
[42]	Li Y, Wu Q, Pan J, et al. 2013. An upper-mantle S-wave velocity model for East Asia from Rayleigh wave tomography[J]. Earth and Planetary Science Letters, 377: 367-377.
[43]	Lu Z, Li C F, Zhu S, et al. 2020. Effective elastic thickness over the Chinese mainland and surroundings estimated from a joint inversion of Bouguer admittance and coherence[J]. Physics of the Earth and Planetary Interiors, 301:106456.
[44]	Molnar P, Tapponnier P. 1978. Active tectonics of Tibet[J]. Journal of Geophysical Research, 83(B11): 5361-5375.
[45]	Oruç B, Balkan E. 2023. Mapping crustal structure and deformation using gravity data in the Bursa Basin and surroundings, Türkiye[J]. Turkish Journal of Earth Sciences, 32(7): 931-943.
[46]	Oruç B, Balkan E. 2021. Stress field estimation by the geoid undulations of the Samos-Kuşadası Bay and implications for seismogenic behavior[J]. Acta Geophysica, 69(3): 1137-1149.
[47]	Tapponnier P, Molnar P. 1977. Active faulting and tectonics in China[J]. Journal of Geophysical Research, 82(20): 2905-2930.
[48]	Tilmann F, Ni J, INDEPTH III Seismic Team. 2003. Seismic imaging of the downwelling Indian lithosphere beneath central Tibet[J]. Science, 300(5624): 1424-1427. PMID
[49]	Turcotte D L, Schubert G. 1982. Geodynamics Applications of Continuum Physics to Geological Problems[M]. Cambridge University Press, Cambridge: 464.
[50]	Xia B, Artemieva I M, Thybo H, et al. 2023. Strong variability in the thermal structure of Tibetan lithosphere[J]. Journal of Geophysical Research: Solid Earth, 128(3): e2022JB026213.
[51]	Xu C, Yu H, Yao C, et al. 2020. An improved gravity method to horizontal tectonic stresses and its applications in Tibet[J]. Geodesy and Geodynamics, 11(6): 468-473.
[52]	Xu W, Zhu D C, Wang Q, et al. 2021. Cumulate mush hybridization by melt invasion: Evidence from compositionally diverse amphiboles in Ultramafic-Mafic arc cumulates within the eastern Gangdese Batholith, southern Tibet[J]. Journal of Petrology, 62: egab073.
[53]	Zheng G, Wang H, Wright T J, et al. 2017. Crustal deformation in the India-Eurasia collision zone from 25 years of GPS measurements[J]. Journal of Geophysical Research: Solid Earth, 122(11): 9290-9312.
[54]	Zhu T, Zhan Y, Unsworth M, et al. 2020. High-resolution lithosphere viscosity structure and the dynamics of the 2008 Wenchuan earthquake area: New constraints from magnetotelluric imaging[J]. Geophysical Journal International, 222: 1352-1362.

2025定日M_S6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征

HORIZONTAL DEVIATORIC STRESS AND ELASTIC LITHOSPHERE THICKNESS CHARACTERISTICS OF THE EPICENTER AND ITS ADJACENT AREAS OF THE DINGRI M_S6.8 EARTHQUAKE, XIZANG, CHINA

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 9

参考文献 54

相关文章 15

编辑推荐

Metrics

本文评价

[1]	张达, 石峰, 罗全星, 乔俊香, 王鑫, 易文星, 李涛, 李安. 西藏定日M_S6.8地震最大地表同震垂直位移量及其地表变形样式[J]. 地震地质, 2025, 47(3): 707-717.
[2]	陈翰林, 王勤彩, 高锦瑞, 李君. 2025年西藏定日M_S6.8地震序列发震构造[J]. 地震地质, 2025, 47(3): 747-760.
[3]	刘胜, 谈洪波, 杨光亮, 孟恒舟, 秦海涛, 王嘉沛, 黄敏夫. 2025年西藏定日M_W7.1地震破裂过程反演[J]. 地震地质, 2025, 47(3): 777-788.
[4]	万永革, 王润妍, 靳志同, 兰从欣. 2025年1月7日定日地震震源特性及对申扎-定结裂谷活动的启示[J]. 地震地质, 2025, 47(3): 806-819.
[5]	尹欣欣, 左可桢, 赵翠萍, 蔡润. 西藏定日 M_S6.8 地震重定位及前震序列识别[J]. 地震地质, 2025, 47(3): 850-868.
[6]	王鹏, 戴宗辉, 孔雪, 李铂, 徐长朋, 张梦昕. 西藏定日 M_S6.8 地震序列应力场演化特征分析[J]. 地震地质, 2025, 47(3): 881-896.
[7]	袁小祥, 林旭川, 陈子峰, 张建龙, 窦爱霞, 肖本夫, 杜浩国, 余思汗, 丁香, 方杰, 王书民. 基于遥感和震害仿真的2025年西藏定日6.8级地震建筑物震害对比[J]. 地震地质, 2025, 47(3): 932-948.
[8]	盛书中, 王倩茹, 李振月, 李红星, 张小娟, 葛坤朋, 宫猛. 基于构造应力场研究2025年西藏定日6.8级地震的发震构造[J]. 地震地质, 2025, 47(1): 49-63.
[9]	罗翔飞, 李忠良, 李勇江, 王泽源, 姬计法, 何辛, 于博. 宜川—泰安剖面的密度结构、构造特征和地震活动[J]. 地震地质, 2023, 45(6): 1385-1399.
[10]	宋冬梅, 王慧, 单新建, 王斌, 崔建勇. 基于汶川地震前重力场与热场关联性分析的应力致热假说的野外证明[J]. 地震地质, 2023, 45(5): 1112-1128.
[11]	徐志萍, 张扬, 杨利普, 徐顺强, 姜磊, 唐淋, 林吉焱. 河南省及邻区主要活动断裂的深部构造特征[J]. 地震地质, 2022, 44(6): 1521-1538.
[12]	宋冬梅, 王慧, 单新建, 王斌, 崔建勇. 基于最大切应变的震前GRACE重力异常信息提取方法[J]. 地震地质, 2022, 44(6): 1539-1556.
[13]	廖桂金, 叶东华, 邓志辉, 李翀, 唐国英, 胡伟明. 地震重力异常与地面沉降重力异常的特征分析[J]. 地震地质, 2022, 44(4): 895-908.
[14]	张国庆, 祝意青, 梁伟锋. 青藏高原东缘扶边河断裂周边地壳密度及垂向构造应力特征[J]. 地震地质, 2022, 44(3): 578-589.
[15]	吴桂桔, 于炳飞, 郝洪涛, 胡敏章, 谈洪波. 漾濞震区及周缘深部构造特征与发震构造[J]. 地震地质, 2021, 43(4): 739-756.

2025定日MS6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征

HORIZONTAL DEVIATORIC STRESS AND ELASTIC LITHOSPHERE THICKNESS CHARACTERISTICS OF THE EPICENTER AND ITS ADJACENT AREAS OF THE DINGRI MS6.8 EARTHQUAKE, XIZANG, CHINA

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 9

参考文献 54

相关文章 15

编辑推荐

Metrics

本文评价

2025定日M_S6.8地震震源区及其邻区偏应力与岩石圈弹性厚度特征

HORIZONTAL DEVIATORIC STRESS AND ELASTIC LITHOSPHERE THICKNESS CHARACTERISTICS OF THE EPICENTER AND ITS ADJACENT AREAS OF THE DINGRI M_S6.8 EARTHQUAKE, XIZANG, CHINA