新疆于田及周边地区地震活动性与重力异常特征

徐伟民; 陈石; 石磊

doi:10.3799/dqkx.2014.166

Volume 39 Issue 12

Dec. 2014

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Xu Weimin, Chen Shi, Shi Lei, 2014. Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions. Earth Science, 39(12): 1831-1841. doi: 10.3799/dqkx.2014.166

Citation:

Xu Weimin, Chen Shi, Shi Lei, 2014. Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions. Earth Science, 39(12): 1831-1841. doi: 10.3799/dqkx.2014.166

Xu Weimin, Chen Shi, Shi Lei, 2014. Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions. Earth Science, 39(12): 1831-1841. doi: 10.3799/dqkx.2014.166

Citation:

Xu Weimin, Chen Shi, Shi Lei, 2014. Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions. Earth Science, 39(12): 1831-1841. doi: 10.3799/dqkx.2014.166

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Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions

doi: 10.3799/dqkx.2014.166

Institute of Geophysics, China Earthquake Administration, Beijing 100081, China

Received Date: 2014-04-04
Publish Date: 2014-12-01

Abstract

Abstract

The latest model of the gravitational field was used in the analysis of the gravity anomaly characteristics in the Yutian seismic zone and surrounding regions. The layered crustal structure model (Crust1.0) has been applied to obtain the deep tectonic structure around the seismic zone. This epicenter occurred in the steep variations of the crustal thickness. Contrast to the M_s7.3 earthquake in 2008 in this region, although these two epicenter were located in different 3-D spaces, they are closely related to the changes in the deep crustal structures. Besides, based on the statistical analysis of the relationship between the seismicity of historical earthquakes (M_s≥5.0) and three different gravity anomalies, we found that the free-air gravity anomalies in the seismic zone are in an obvious linear correlation to the topography, while the Bouguer anomaly and isostatic anomaly are distinctly different with the topography. In addition, the total gorizontal gradient (HGM)of the anomalies were calculated and the analytical signal (ASL) was plotted, which suggest that the gradient values are more distinctly correlated. The results show that a significant statistical characteristic exists between the activities of the strong earthquakes (M_s≥7.0) and the gravity anomalies, which may be related to the mass uneven distribution of the deep structure which caused the gravity anomaly.
- Yutian earthquake,
- Seismic activity,
- gravity anomaly,
- crust model,
- statistical characteristics,
- earthquake

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References(45)

References

Chen, C.Y., Ren, J.W., Meng, G.J., et al., 2013. Division, Deformation and Tectonic Implication of Active Blocks in the Eastern Segment of Bayan Har Block. Chinese J. Geophys., 56(12): 4125-4141 (in Chinese with English abstract). http://www.researchgate.net/publication/283838298_Division_deformation_and_tectonic_implication_of_active_blocks_in_the_eastern_segment_of_Bayan_Har_block

Cui, J.W., Zhang, X.W., Li, P.W., 2002. The Altun Fault: Its Geometry, Nature and Mode of Growth. Acta Geoscientia Sinica, 23(6): 509-516 (in Chinese with English abstract). http://www.cqvip.com/QK/86253X/20012/1001445424.html

Fernández, M., Fullea, J., Zeyen, H., 2008. FA2BOUG—A FORTRAN 90 Code to Compute Bouguer Gravity Anomalies from Gridded Free-Air Anomalies: Application to the Atlantic-Mediterranean Transition Zone. Computers & Geosciences, 34(12): 1665-1681. doi: 10.1016/j.cageo.2008.02.018

Gao, X., Deng, Q.D., 2013. Activity Analysis of Large Earthquakes in Boundary Faults around the Bayankala Faulting Block. Acta Geologica Sinica, 87(1): 9-19 (in Chinese with English abstract). http://www.researchgate.net/publication/285736964

Geng, T., Tian, Q.N., Yang, H.Q., et al., 2008. Constraints of the Regional Gravitational Field on the Trend and Extension of the Southwestern Part of the Altyn Tagh Fault. Geology in China, 35(5): 841-848 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI200805006.htm

Laske, G., Masters, G., Ma, Z., et al., 2013. Update on Crust 1.0 A 1-Degree Global Model of Earth's Crust. Geophys. Res. Abstracts, 15: 2658. http://adsabs.harvard.edu/abs/2013EGUGA..15.2658L

Li, Q.S., Peng, S.P., Gao, R., et al., 2003. Seismic Evidence of the Basement Uplift in the Bayan Har Tectonic Belt, Qinghai, and Its Tectonic Significance. Geological Bulletin of China, 22(10): 782-788 (in Chinese with English abstract). http://www.cnki.com.cn/Article/CJFDTotal-ZQYD200310005.htm

Li, Y., Oldenburg, D.W., 1998. Separation of Regional and Residual Magnetic Field Data. Geophysics, 63(2): 431-439. doi: 10.1190/1.1444343

Li, Z.H., Ma, H.S., Qu, Y.J., 2009. Study on Seismogenic Structure and Seismic Activity Characteristics before the Yutian M_s7.3 Earthquake on March 21, 2008, Xinjiang. Earthquake Research in China, 25(2): 199-205(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZGZD200902012.htm

Liu, M., Stein, S., Wang, H., 2011a., 2000 Years of Migrating Earthquakes in North China: How Earthquakes in Midcontinents Differ from Those at Plate Boundaries. Lithos, 3(2): 128-132. doi: 10.1130/L129.1

Liu, M., Yang, Y., Li, Q., et al., 2011b. Parallel Finite Element Modeling of Multi-Timescale Faulting and Lithospheric Deformation in the Western US. In: Keller, R., Baru, C., eds., Cyberinfrastructure for Geosciences. Cambridge Press, London, 68-94.

Ren, S.M., Ge, X.H., Liu, Y.J., 2003. Progress in Altyn Fault Belts Research. Advance in Earth Sciences, 6(3): 386-391(in Chinese with English abstract). http://www.adearth.ac.cn/EN/abstract/abstract480.shtml

Sandwell, D.T., Garcia, E., Soofi, K., et al., 2013. Toward 1-mGal Accuracy in Global Marine Gravity from CryoSat-2, Envisat, and Jason-1. The Leading Edge, 32(8): 892-899. doi: 10.1190/tle32080892.1

Sandwell, D.T., Smith, W.H.F., 1997. Marine Gravity Anomaly from Geosat and ERS 1 Satellite Altimetry. Journal of Geophysical Research: Solid Earth, 102(B5): 10039-10054. doi: 10.1029/96JB03223

Sandwell, D.T., Smith, W.H.F., 2009. Global Marine Gravity from Retracked Geosat and ERS-1 Altimetry: Ridge Segmentation versus Spreading Rate. Journal of Geophysical Research, 114(B1): B01411. doi: 10.1029/2008JB006008

Shen, J., Song, H.P., Chen, J.B., et al., 2013. Field Investigation on the Near-Fault Damaging Effects of the 2008 Yutian M_s7.1 Earthquake in Xinjiang, China. Earth Science Frontiers, 20(6): 85-93 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DXQY201306015.htm

Smith, W.H.F., Sandwell, D.T., 1997. Global Sea Floor Topography from Satellite Altimetry and Ship Depth Soundings. Science, 277(5334): 1956-1962. doi: 10.1126/science.277.5334.1956

Stein, S., Liu, M., Calais, E., et al., 2009. Mid-Continent Earthquakes as a Complex System. Seismological Research Letters, 80(4): 551-553. doi: 10.1785/gssrl.80.4.551

Song, T.R.A., Simons M., 2003. Large Trench-Parallel Gravity Variations Predict Seismogenic Behavior in Subduction Zones. Science, 301(5633): 630-633. doi: 10.1126/science.1085557

Wan, Y.G., Shen, Z.K., Shen, S.Z., et al., 2010. The Mechanical Effects of the 2008 M_s7.3 Yutian, Xinjiang Earthquake on the Neighboring Faults and Its Tectonic Origin of Normal Faulting Mechanism. Chinese J. Geophys, 53(2): 280-289 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DQWX201002007.htm

Wang, Q.S., 2003. Gravitology. Seismological Press, Beijing, 128-147 (in Chinese).

Wang, W.Y., 2010. Spatial Variation Law of the Extreme Value Positions of Total Horizontal Derivative for Potential Field Data. Chinese J. Geophys. , 53(9): 2257-2270 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQWX201009028.htm

Xu, X.W., Tan, X.B., Wu, G.D., et al., 2011. Surface Rupture Features of the Yutian M_s7.3 Earthquake and Its Tectonic Nature. Seismology and Geology, 33(2): 462-471(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DZDZ201102024.htm

Xu, Z.Q., Yang, J.S., Zhang, J.X., et al., 1999. A Comparison between the Tectonic Units on the Two Sides of the Altun Sinistral Strike-Slip Fault and the Mechanism of Lithospheric Shearing. Acta Geologica Sinica, 73(3): 193-205(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXE199903000.htm

Yang, X.Y., Chen, L.W., Yang, L.M., et al., 2013. Numerical Simulation on Strong Earthquake Dynamic Process of Bayan Har Block. Acta Seismologica Sinica, 35(3): 304-314(in Chinese with English abstract). http://www.researchgate.net/publication/289255257_Numerical_simulation_on_strong_earthquake_dynamic_process_of_Bayan_Har_block

Zhang, G.M., Zhang, P.Z., 1999. Recent Research Progress on the Mechanism and Forcast for Continental Strong Earthquakes. China Basic Science, (Z1): 47-58(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZGJB200403001.htm

Zhang, P.Z., Deng, Q.D., Zhang, G.M., et al., 2003. Strong Earthquake Activities and Continental Block of Mainland China. Science in China (Series D), 33(S1): 12-20(in Chinese).

Zhang, Y., Xu, L.S., Chen, Y.T., et al., 2014. Fast Inversion for the Rupture Process of the 12 February 2014 Yutian M_w6.9 Earthquake: Discussion on the Impacts of Focal Mechanisms on Rupture Process Inversions. Acta Seismologica Sinica36(2): 159-164(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXB201402001.htm

陈长云, 任金卫, 孟国杰, 等, 2013. 巴颜喀拉块体东部活动块体的划分、形变特征及构造意义. 地球物理学报, 56(12): 4125-4141. doi: 10.6038/cjg20131217

崔军文, 张晓卫, 李朋武, 2002. 阿尔金断裂: 几何学、性质和生长方式. 地球学报, 23(6): 509-516. doi: 10.3321/j.issn:1006-3021.2002.06.005

高翔, 邓起东, 2013. 巴颜喀喇断块边界断裂强震活动分析. 地质学报, 87(1): 9-19. doi: 10.3969/j.issn.0001-5717.2013.01.002

耿涛, 田黔宁, 杨汇群, 等, 2008. 阿尔金断裂西南端走向及延伸的区域重力场制约. 中国地质, 35(5): 841-848. doi: 10.3969/j.issn.1000-3657.2008.05.005

李秋生, 彭苏萍, 高锐, 等, 2003. 青藏高原北部巴颜喀拉构造带基底隆起的地震学证据. 地质通报, 22(10): 782-788. doi: 10.3969/j.issn.1671-2552.2003.10.006

李志海, 马宏生, 曲延军, 2009.2008年3月21日新疆于田7.3级地震发震构造与震前地震活动特征研究. 中国地震, 25(2): 199-205. doi: 10.3969/j.issn.1001-4683.2009.02.011

任收麦, 葛肖虹, 刘永江, 2003. 阿尔金断裂带研究进展. 地球科学进展, 6(3): 386-391. doi: 10.3321/j.issn:1001-8166.2003.03.010

沈军, 宋和平, 陈建波, 等, 2013.2008年3月21日新疆于田7.1级地震近断层破坏作用. 地学前缘, 20(6): 89-97. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201306015.htm

万永革, 沈正康, 盛书中, 等, 2010.2008年新疆于田7.3级地震对周围断层的影响及其正断层机制的区域构造解释. 地球物理学报, 53(2): 280-289. doi: 10.3969/j.issn.0001-5733.2010.02.006

王谦身, 2003. 重力学. 北京: 地震出版社, 128-147.

王万银, 2010. 位场总水平导数极值位置空间变化规律研究. 地球物理学报, 53(9): 2257-2270. doi: 10.3969/j.issn.0001-5733.2010.09.027

徐锡伟, 谭锡斌, 吴国栋, 等, 2011.2008年于田M_s7.3地震地表破裂带特征及其构造属性讨论. 地震地质, 33(2): 462-471. doi: 10.3969/j.issn.0253-4967.2011.02.019

许志琴, 杨经绥, 张建新, 等, 1999. 阿尔金断裂两侧构造单元的对比及岩石圈剪切机制. 地质学报, 73(3): 193-205. doi: 10.3321/j.issn:0001-5717.1999.03.001

杨兴悦, 陈连旺, 杨立明, 等, 2013. 巴颜喀拉块体强震动力学过程数值模拟. 地震学报, 35(3): 304-314. doi: 10.3969/j.issn.0253-3782.2013.03.003

张国民, 张培震, 1999. 近年来大陆强震机理与预测研究的主要进展中国基础科学, (Z1): 47-58.

张培震, 邓起东, 张国民, 等, 2003. 中国大陆的强震活动与活动地块. 中国科学(D辑), 33(S1): 12-20. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2003S1001.htm

张勇, 许力生, 陈运泰, 等, 2014.2014年2月12日于田M_w6.9地震破裂过程初步反演: 兼论震源机制对地震破裂过程反演的影响. 地震学报, 36(2): 159-164. doi: 10.3969/j.issn.0253-3782.2014.02.001

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Seismic Activity and Gravity Anomaly Characteristics of Yutian in Xinjiang and Surrounding Regions

doi: 10.3799/dqkx.2014.166

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