基于PSInSAR的2008年汶川MS8.0地震震后形变场特征

Abstract

Abstract: The May 12, 2008 Wenchuan M_S8.0 earthquake caused severe disasters, and field observation revealed obvious coseismic surface displacement and widely distributed surface ruptures in the area. In order to study the post-seismic deformation, multi-temporal ENVISAT ASAR data were acquired during the period of May 28 2008 to 15 September 2010, including 2 adjacent tracks covering the post-seismic deformation regions. PSInSAR processing based on single-master image was implemented to the 2 tracks, respectively. Time-series deformation maps and mean deformation velocity maps for the 2 tracks were obtained and merged together in this study. The Results show that deformation pattern show differences along the two sides of the Longmenshan Fault. To the north-west of Longmenshan fault, the upward deformation accumulates to the maximum of 26 mm and the maximum deformation rate was about 17±7 mm/yr; however, to the south-east of the Longmenshan fault, the subsidence deformation accumulates to the maximum of -10 mm and the maximum deformation rate was about -5 mm/yr. Post-seismic deformation of this study reveals that the earthquake activity was dominated by thrust slip with minor right-lateral strike-slip at this segment of Longmenshan Fault, which is consistent with GPS observation results.

Key words: Post-seismic deformation, PSInSAR, The 2008 Wenchuan M_S8.0 earthquake, Longmenshan Fault

CLC Number:

P315.7

DONG Yan-fang, HONG Shun-ying, MENG Guo-jie. Post-seismic Surface Deformation of the 2008 Wenchuan M_S8.0 Earthquake based on PSInSAR[J]. EARTHQUAKE, 2018, 38(2): 95-106.

References

[1] Shen Z, Lü J, Wang M, et al. Contemporary crustal deformation around the southeast borderland of the Tibetan Plateau[J]. Journal of geophysical research: Solid Earth., 2005, 110(b11): B11409.
[2] 徐锡伟, 闻学泽, 陈桂华, 等. 巴颜喀拉地块东部龙日坝断裂带的发现及其大地构造意义[J]. 中国科学(D辑: 地球科学) , 2008, 38(5): 529-542.
[3] Shen Z K, Sun J, Zhang P, et al. Slip maxima at fault junctions and rupturing of barriers during the 2008 Wenchuan earthquake[J]. Nat. Geosci., 2009, 2: 718-724.
[4] Feng G, Hetland E A, Ding X, et al. Coseismic fault slip of the 2008 M_W7.9 Wenchuan earthquake estimated from InSAR and GPS measurements[J]. Geophys Res Lett., 2010, 37: L01302.
[5] Xu C, Liu Y, Wen Y, et al. Coseismic Slip Distribution of the 2008 M_W7.9 Wenchuan Earthquake from Joint Inversion of GPS and InSAR Data[J]. Bulletin of the Seismological Society of America, November 2010, 100(5B): 2736-2749.
[6] Wang Q, Qiao X, Lan Q, et al. Rupture of deep faults in the 2008 Wenchuan earthquake and uplift of the Longmen Shan[J]. Nature Geoscience, 2011, 4(9): 634-640.
[7] Fielding E J, Sladen A, Li Z, et al. Kinematic fault slip evolution source models of the 2008 M7.9 Wenchuan earthquake in China from SAR interferometry, GPS and teleseismic analysis and implications for Longmen Shan tectonics[J]. Geophysical Journal International, 2013, 194(2): 1138-1166.
[8] Xu X, Wen X, Yu G, et al. Coseismic reverse- and oblique-slip surface faulting generated by the 2008 M_W7.9 Wenchuan earthquake, China[J]. Geology, 2009, 37(6): 515-518.
[9] Ken X S, Si H J, Fujiwara H, et al. Coseismic surface-ruptures and crustal deformations of the 2008 Wenchuan earthquake M_W7.9, China[J]. Geophys Res Lett, 2009, 36: L11303.
[10] Li Z H, Elliott J R, Feng W P, et al. The 2010 M_W6.8 Yushu (Qinghai, China) earthquake: Constraints provided by InSAR and body wave seismology[J]. J Geophys Res., 2011, 116: B10302.
[11] Wen Y, Xu C, Liu Y, et al. Deformation and source parameters of the 2015 M_W6.5 earthquake in Pishan, western China, from Sentinel-1A and ALOS-2 data[J]. Remote Sens, 2016, 8(2): 134.
[12] Jiang H, Feng G, Wang T, et al. Toward full exploitation of coherent and incoherent information in Sentinel-1 TOPS data for retrieving surface displacement: Application to the 2016 Kumamoto (Japan) earthquake[J]. Geophysical Research Letters, 2016, 10.1002/2016GL072253.
[13] 白泽朝, 徐青, 靳国旺, 等. 利用Sentinel-lA数据反演2016年青海门源M_W5.9地震的同震形变场及断层参数[J]. 地震, 2017, 37(3): 12-21.
[14] Ferretti A, Prati C, Rocca F. Permanent scatterers in SAR interferometry[J]. IEEE Transactions on Geoscience and Remote Sensing, 2001, 39(1): 8-19.
[15] Kampes B, Adam N. Velocity field retrieval from long term coherent points in radar interferometric stacks[J]. IEEE, 2003, 0-7803-7929-2: 941-944.
[16] Hooper A, Zebker H A, Segall P, et al. A new method for measuring deformation on volcanoes and other natural terrains using InSAR persistent scatterers[J]. Geophysical Research Letters, 2004, L23611.
[17] Kim J S, Kim D J, Kim S W, et al. Monitoring of urban land surface subsidence using PSInSAR[J]. Geosciences Journal, 2007, 11(1): 59-73.
[18] 廖明生, 裴媛媛, 王寒梅, 等. 永久散射体雷达干涉技术监测上海地面沉降[J]. 上海国土资源, 2012, 33(3): 5-10.
[19] 罗三明, 单新建, 朱文斌, 等. 多轨PSInSAR监测华北平原地表垂直形变场[J]. 地球物理学报, 2014, 57(10): 3129-3139.
[20] Shokrzade S, Voosoghi B, Amighpey M, et al. Investigation of Post-seismic and Inter-seismic Displacement Field Following 2003 Bam Earthquake in Iran Based on PS-InSAR Technique[J]. Journal of the Indian Society of Remote Sensing, 2017, 45(3): 541-552.
[21] 张志清, 唐文清, 刘宇平, 等. 基于高精度GPS监测龙门山断裂带中段及邻区现今地壳活动性研究[J]. 地球物理学进展, 2013, 28(1): 190-198.
[22] 沈正康, 王敏, 王凡, 等. 汶川地震震后形变过程与龙门山断裂带及周边介质流变学性质研究[C]. 中国地球物理学会年会, 2012.
[23] 丁开华, 徐才军, 温扬茂. 汶川地震震后形变的GPS反演[J]. 武汉大学学报·信息科学版, 2013, 38(2): 131-135.
[24] 朱良玉, 王双绪, 蒋锋云. 利用震后GPS数据反演汶川地区有效黏滞系数[J]. 地震学报, 2014, 36(1): 32-41.
[25] Huang M, Bürgmann R, Freed A M, Probing the lithospheric rheology across the eastern margin of the Tibetan Plateau[J]. Earth and Planetary Science Letters, 2014, 396(15 June 2014): 88-96.
[26] Hooper A, Segall P, Zebker H. Persistent scatterer interferometric syntheticaperture radar for crustal deformation analysis, with application to Volcán Alcedo, Galápagos[J]. Journal of geophysical research, 2007, 112: B07407.
[27] Hooper A. A multi-temporal InSAR method incorporating both persistent scatterer and small baseline approaches[J]. Geophys Res Lett., 2008, 35: L16302.
[28] Hooper A, Zebker H. Phase unwrapping in three dimensions with application to InSAR time series[J]. J. Opt. Soc. Am. A, 2007, 24(9): 2737-2747.

Post-seismic Surface Deformation of the 2008 Wenchuan M_S8.0 Earthquake based on PSInSAR

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	CHEN Wei, LIU Tai, SHE Ya-wen, FU Guang-yu. Co-Seismic Fault Slip Distribution of the 2011 Tohoku-Oki M_W9.0 Earthquake Retrieved from Co- and Post-seismic Displacements [J]. EARTHQUAKE, 2021, 41(4): 121-135.
[2]	SONG Cheng, ZHANG Yong-xian, XIA Cai-yun, ZHANG Xiao-tao. Long-term Ionospheric Evolution Characteristics Associated with the 2008 Wenchuan M_S8.0 Earthquake using Modified Pattern Informatics [J]. EARTHQUAKE, 2019, 39(2): 135-146.
[3]	WU Shan-yi, LIU Qi, GONG Li-wen, ZHANG Zhi-guang. High-Frequency Anormaly Characteristics of Fixed-point Deformation before the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 145-156.
[4]	CHEN Xue-zhong, WANG Heng-xin, WANG Sheng-wen, WEI Yong-gang, GUO Xiang-yun, CHEN Li-juan, LI Yan-e. Effect of the Earth Rotation Deceleration on the Occurrence of the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 127-136.
[5]	XI Ji-lou, GUAN Hua-ping, ZHUANG Nan, LIU Chao, WU Jian-hua, YAN Xiao-ye. Immediate to Long-term Changes of Geoelectric Potential Difference before and after Several Large Earthquakes [J]. EARTHQUAKE, 2018, 38(2): 117-126.
[6]	QIAN Jia-dong, ZHANG Xue-min, WANG Ya-lu, LI Xue-hao. Simulation of the Geo-electricity Anomaly in the NE Direction at Chengdu Station Associated with the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 107-116.
[7]	ZHANG Xiao-tao, LIU Jie, SONG Zhi-ping, XUE Yan, ZHANG Yong-xian, YAN Rui, YUAN Zheng-yi. Temporal and Spatial Evolution of Precursory Anomalies of the 2008 Wenchuan M_S8.0 Earthquake and Mechanical Analysis [J]. EARTHQUAKE, 2018, 38(2): 72-83.
[8]	MENG Guo-jie, SU Xiao-ning, WANG Zhen, LIAO Hua. Joint Inversion for the Rupture Process of the 2008 Wenchuan M_S8.0 Earthquake from 1 Hz GPS, Strong Motion and Teleseismic Data [J]. EARTHQUAKE, 2018, 38(2): 11-27.
[9]	SHAO Zhi-gang, WANG Peng. Reflections on Earthquake Prediction Research Ten Years after the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 1-10.
[10]	LI Mei, WANG Zhong-ping, LU Jun, TAN Han-dong, ZHANG Xiao-tao. Estimating the Equivalent Dipole of the 2008 Wenchuan M_S8.0 Earthquake using Observed Electromagnetic Ground Signals [J]. EARTHQUAKE, 2018, 38(1): 49-60.
[11]	XIONG Xiao-hui, JIANG Zai-sen, WU Yan-qiang, LIU Xiao-xia, WEI Wen-xin, ZOU Zhen-yu, WANG Qi-xin. Dynamic Crustal Deformation Characteristics from GPS Data in the Southern Section of the Longmenshan Fault Belt after the 2008 Wenchuan Earthquake [J]. EARTHQUAKE, 2015, 35(3): 10-21.
[12]	LI Yuan, NIU An-Fu, ZHAO Jing, LIU Xi-Kang. Dynamic Variations of Crustal Density in the Longmenshan Area before the 2008 Wenchuan 8.0 Earthquake [J]. EARTHQUAKE, 2015, 35(1): 77-90.
[13]	WU Pei-zhi, SUN Jian-bao, XU Ping, XING Cheng-qi, HU Le-yin, LIANG Fang, HUANG Yurrui, SHI Yu-fang, JI Hong. Responses of the East Component of Beijing GNSS Continuous Stations to the 2011 Japan M_w9.0 Earthquake [J]. EARTHQUAKE, 2014, 34(4): 152-157.
[14]	XU Jing, SHAO Zhi-gang, MA Hong-sheng, ZHANG Lang-ping. Impact of the 2008 Wenchuan 8.0 and the 2013 Lushan 7.0 Earthquakes along the Longmenshan Fault Zone on Surrounding Faults [J]. EARTHQUAKE, 2014, 34(4): 40-49.
[15]	PING Jian-jun, JIANG Zai-sen, FENG Xiang-dong, PING Cai-peng, SHAN Lian-jun, WANG Xia. Seismotectonic Movement Characteristics of the Longmenshan Fault Zone before the Wenchuan 8.0 Earthquake [J]. EARTHQUAKE, 2014, 34(1): 58-67.

Post-seismic Surface Deformation of the 2008 Wenchuan MS8.0 Earthquake based on PSInSAR

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

Post-seismic Surface Deformation of the 2008 Wenchuan M_S8.0 Earthquake based on PSInSAR