日本3·11大地震对郯庐断裂带(中南段)位移场影响的数值模拟研究

doi:10.3969/j.issn.0253-4967.2015.03.020

摘要/Abstract

摘要：

通过建立的2个有限元模型, 从位移场的角度探究了日本3·11大地震对郯庐断裂带(中南段)区域的影响.结果表明, 日本3·11大地震所引起的同震水平位移在郯庐断裂带附近达到了mm至cm级.在郯庐断裂带的东侧, 位移值最大处的中国东北地区达到了30mm, 在华北地区, 位移值最大处的烟台、威海等地也达到了12mm; 在郯庐断裂带的西侧, 位移值最大的东北地区有20mm, 而在华北地区, 位移值最大只有8mm.可见郯庐断裂带的东西两侧位移值差别非常明显.总体而言, 日本3·11大地震对中国影响比较大的地方主要在郯庐断裂带的北段, 即中国东北地区.考虑到实际地壳介质对应变传递的延迟效应, 日本3·11大地震对中国郯庐断裂带的实际影响会有1个滞后, 因此, 2011年以来辽宁、吉林的多次地震与日本3·11大地震可能存在一定的相关性, 可见日本大地震对山东、江苏段的影响仍然不可忽视.

关键词: 日本3·11大地震, 郯庐断裂带, 位移场, 数值模拟

Abstract:

Based on the finite element models, in this paper, the impact of Japan 3·11 earthquake on the south-central section of Tanlu Fault zone is discussed in the view of displacement field. From the displacement magnitude acquired by the numerical simulation of Japan 3·11 earthquake, this earthquake has a certain impact on Tanlu Fault zone in mainland China area. The simulation results show that the coseismic horizontal displacement near the Tanlu Fault zone caused by Japan 3·11 earthquake has reached millimeter to centimeter level. On the east side of the fault zone, the maximum displacement value in Northeast China reaches to 30 millimeters, and the maximum displacement value in Yantai, Weihai and other places of North China also reaches to 12 millimeters. On the west side of the fault zone, the maximum displacement value in Northeast China reaches to 20 millimeters, and the maximum displacement value in North China is only 8 millimeters. The displacement value difference is very obvious in both sides of Tanlu Fault zone. In addition, the simulation results also show that the displacement values in the east-west direction is much bigger than the one in the south-north direction of the Tanlu Fault zone and nearby areas; especially the displacement direction is basically near to east-west direction in North China. Meanwhile, bigger NS-direction displacement appeared in Northeast China, and the maximum displacement value even reaches to 8 millimeters. Therefore, the impact of Japan 3·11 earthquake on this area is more complex. Considering the actual delay effect of crustal medium to stress transfer, the impact of Japan 3·11 earthquake on the Tanlu Fault zone will have a delay, so the follow-up effect will stay for a certain time. Although the displacement value in eastern North China(Tanlu Fault zone and its nearby area)is smaller than the one in Northeast China, the impact of Japan 3·11 earthquake still cannot be ignored. Considering that many magnitude 4 or 5 earthquakes have occurred in Kenli, Changdao, Rongcheng, Laizhou in Shandong Province and in the Rudong, Gaoyou in Jiangsu Province since 2011, it cannot be excluded the possibility that a larger earthquake will happen in this area in the future. Thus, due attention has to be paid to this.

Key words: Japan 3·11 earthquake, Tanlu Fault zone, displacement field, numerical simulation

中图分类号:

P315.2

尹京苑, 刘岚, 王华林, 李成范. 日本3·11大地震对郯庐断裂带(中南段)位移场影响的数值模拟研究[J]. 地震地质, 2015, 37(3): 928-938.

YIN Jing-yuan, LIU Lan, WANG Hua-lin, LI Cheng-fan. THE RESEARCH ON THE IMPACT OF DISPLACEMENT FIELD OF JAPAN 3·11 EARTHQUAKE ON THE SOUTH CENTRAL SECTION OF TANLU FAULT ZONE[J]. SEISMOLOGY AND GEOLOGY, 2015, 37(3): 928-938.

参考文献

陈光齐, 武艳强, 江在森, 等. 2013. GPS资料反映的日本东北M_W9. 0级地震的孕震特征［J］. 地球物理学报, 56(3): 848—856.
CHEN Guang-qi, WU Yan-qiang, JIANG Zai-sen, et al. 2013. Characteristics of seismogenic model of M_W9.0 earthquake in Tohoku, Japan reflected by GPS data［J］. Chinese Journal of Geophysics, 56(3): 848—856(in Chinese).
陈连旺, 陆远忠, 刘杰, 等. 2001. 1966年邢台地震引起的华北地区应力场动态演化过程的三维粘弹性模拟［J］. 地震学报, 23(5): 480—491.
CHEN Lian-wang, LU Yuan-zhong, LIU Jie, et al. 2001. Three dimensional viscoelastic simulation on dynamic evolution of stress field in North China induced by the 1966 Xingtai earthquake［J］. Acta Seismologica Sinica, 23(5): 480—491(in Chinese).
陈为涛, 甘卫军, 肖根如, 等. 2012. 3·11 日本大地震对中国东北部地区地壳形变态势的影响［J］. 地震地质, 34(3): 425—437. doi: 3969/j.issn.0253-4967.2012.03.004.
CHEN Wei-tao, GAN Wei-jun, XIAO Gen-ru, et al. 2012. The impact of 2011 Tohoku-Oki earthquake in Japan on crustal deformation of northeastern region in China［J］. Seismology and Geology, 34(3): 425—437(in Chinese).
陈祖安, 白武明, 林邦慧, 等. 2003. 1966年以来华北地区一系列七级大震破裂过程的数值模拟［J］. 地球物理学报, 46(3): 373—381.
CHEN Zu-an, BAI Wu-ming, LIN Bang-hui, et al. 2003. Numerical simulation for rupture processes of a series of strong earthquakes(M_S>7)in North China since 1966［J］. Chinese Journal of Geophysics, 46(3): 373—381(in Chinese).
董治平, 程建武, 郭桂红. 2012. 日本 9 级大地震及其对中国强震活动的影响［J］. 内陆地震, 1(26): 1—9.
DONG Zhi-ping, CHENG Jiang-wu, GUO Gui-hong. 2012. M_S9.0 earthquake in Japan and its influence on strong earthquake activity in China［J］. Inland Earthquake, 1(26): 1—9(in Chinese).
嵇少丞, 王茜, 许志琴. 2008. 华北克拉通破坏与岩石圈减薄［J］. 地质学报, 82(2): 174—193.
JI Shao-cheng, WANG qian, XU Zhi-qin. 2008. Break-up of the North China craton through lithospheric thinning［J］. Acta Geologica Sinica, 82(2): 174—193(in Chinese).
李文英, 王秀英. 1996. 华北地区与日本海沟地震的相关性分析［J］. 地震, 16(3): 219—224.
LI Wen-ying, WANG Xiu-ying. 1996. The correlation analysis of earthquake in North China and Japan Trench earthquake［J］. Earthquake, 16(3): 219—224(in Chinese).
李延兴, 李智, 马宗晋, 等. 2004. 亚太地区的现今构造运动与应变［A］. 见: 朱耀仲, 孙和平主编. 大地测量与地球动力进展论文集. 湖北: 湖北科学技术出版社. 529—543.
LI Yan-xing, LI Zhi, MA Zong-jin, et al. 2004. Present-day tectonic movement and strain of Asia-Pacific［A］. In: ZHU Yao-zhong, SUN He-ping(eds). Progress in Geodesy and Geodynamics. Hubei Science and Technology Press, Wuhan. 529—543(in Chinese).
李延兴, 张静华, 李智, 等. 2006. 太平洋板块俯冲对中国大陆的影响［J］. 测绘学报, 35(2): 99—105.
LI Yan-xing, ZHANG Jing-hua, LI Zhi, et al. 2006. The influence of the subduction of the Pacific plate on the Chinese mainland［J］. Journal of Surveying and Mapping, 35(2): 99—105(in Chinese).
梁凯利. 2011. 日本 3·11特大地震相关背景和报道分析［J］. 国际地震动态, (4): 4—5.
LIANG Kai-li. 2011. Analysis on background and relevant reports about the Japan 3·11 earthquake［J］. Recent Developments in World Seismology, (4): 4—5(in Chinese).
刘昌铨, 刘明军, 嘉世旭. 1998. 利用华北北部深部地球物理资料数值模拟地壳应力场［J］. 地震学报, 20(3): 240—249.
LIU Chang-quan, LIU Ming-jun, JIA Shi-xu. 1998. Numerical simulation of the crustal stress field by using data of deep geophysical exploration in the northern part of North China［J］. Acta Seismological Sinica, 20(3): 240—249(in Chinese).
王辉, 张国民, 石耀霖, 等. 2006. 青藏活动地块区运动与变形特征的数值模拟［J］. 大地测量与地球动力学, 26(2): 15—23.
WANG Hui, ZHANG Guo-min, SHI Yao-lin, et al. 2006. Numerical simulation of movement and deformation of Qinghai-Tibet plateau［J］. Journal of Geodesy and Geodynamics, 26(2): 15—23(in Chinese).
王敏, 李强, 王凡, 等. 2011. 全球定位系统测定的 2011 年日本宫城M_W9. 0级地震远场同震位移［J］. 科学通报, 56(20): 1593—1596.
WANG Min, LI Qiang, WANG Fan, et al. 2011. Far-field coseismic displacements associated with the 2011 Tohoku-Oki earthquake in Japan observed by global positioning system［J］. Chinese Sci Bull, 56(20): 1593—1596(in Chinese).
王仁, 何国琦, 殷有泉, 等. 1980. 华北地区地震迁移规律的数值模拟［J］. 地震学报, 2(1): 32—42.
WANG Ren, HE Guo-qi, YIN You-quan, et al. 1980. A mathematical simulation for the pattern of seismic transference in North China［J］. Acta Seismologica Sinica, 2(1): 32—42(in Chinese).
杨国华, 江在森, 王敏, 等. 2006. 印尼地震对中国川滇地区地壳水平活动的影响［J］. 大地测量与地球动力学, 26(1): 9—14.
YANG Guo-hua, JIANG Zai-sen, WANG Min, et al. 2006. Effect of Indonesia earthquake on horizontal crustal movement in Sichuan-Yunnan region［J］. Journal of Geodesy and Geodynamics, 26(1): 9—14(in Chinese).
杨少敏, 聂兆生, 贾志革, 等. 2009. GPS解算的日本M_W9. 0级地震的远场同震地表位移［J］. 武汉大学学报: 信息科学版, 36(11): 1336—1339.
YANG Shao-min, NIE Zhao-sheng, JIA Zhi-ge, et al. 2009. Far-field coseismic surface displacement caused by the M_W9.0 Tohoku earthquake［J］. Geomatics and Information Science of Wuhan University, 36(11): 1336—1339(in Chinese).
殷海涛, 甘卫军, 黄蓓, 等. 2013. 日本M9.0级巨震对山东地区地壳活动的影响研究［J］. 地球物理学报, 56(5): 1497—1505.
YIN Hai-tao, GAN Wei-jun, HUANG Bei, et al. 2013. Study on the effects of Japan M9.0 huge earthquake on crustal movement of Shandong area［J］. Chinese J Geophys, 56(5): 1497—1505(in Chinese).
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［J］. 中国科学(D 辑), (33): 12—20.
ZHANG Pei-zhen, DENG Qi-dong, ZHANG Guo-min, et al. 2003. Strong earthquake activity and active blocks in Chinese mainland［J］. Science in China(Ser D), (33): 12—20(in Chinese).
张文佑, 张抗, 赵永贵, 等. 1983. 华北断块区中、新生代地质构造特征及岩石圈动力学模型［J］. 地质学报, (1): 33—42.
ZHANG Wen-you, ZHANG Kang, ZHAO Yong-gui, et al. 1983. The Mesozoic and Cenozoic geotectonic characteristics and dynamical model of the lithosphere in North China fault block region［J］. Acta Geologica Sinica, (1): 33—42(in Chinese).
赵国强, 李鹏. 2011. 中国大陆GPS连续观测站测得的日本9.0级地震同震位移与震前变化［J］. 地震, 32(2): 129—134.
ZHAO Guo-qiang, LI Peng. 2011. Coseismic and pre-seismic displacement observed by fiducial stations in China caused by the 2011 Japan M 9.0 earthquake［J］. Earthquake, 32(2): 129—134(in Chinese).
中国地震局地质研究所. 2011. 日本东海M_W9.0地震在中国大陆东部区域的GPS同震位移［EB/OL］. http://www.cea.gov.cn/manage/html/8a8587881632fa5c0116674ao18300cf/_content//11_03/22/1300780240530.html.[JP]
Institute of Geology, China Earthquake Administration. 2011. The GPS coseismic displacement of Japan M_W9.0 earthquake in mainland China area［EB/OL］. http://www.cea.gov.cn/manage/html/8a8587881632fa5c0116674ao18300cf/_content//11_03/22/1300780240530.html(in Chinese).

[1]	赵朋, 李军辉, 陶月潮, 疏鹏, 方震. 郯庐断裂带女山湖北侧探槽的新活动现象及讨论[J]. 地震地质, 2023, 45(2): 338-354.
[2]	郑海刚, 姚大全, 赵朋, 杨源源, 黄金水. 郯庐断裂带赤山段全新世新活动的特征[J]. 地震地质, 2023, 45(1): 127-138.
[3]	杨源源, 李鹏飞, 路硕, 疏鹏, 潘浩波, 方良好, 郑海刚, 赵朋, 郑颖平, 姚大全. 郯庐断裂带中段F₅断裂淮河-女山湖段的古地震与垂直滑动速率[J]. 地震地质, 2022, 44(6): 1365-1383.
[4]	秦晶晶, 刘保金, 王志才, 酆少英, 邓小娟, 花鑫升, 李倩. 利用地震反射剖面探测研究安丘-莒县断裂板泉段的浅部构造特征[J]. 地震地质, 2022, 44(2): 349-362.
[5]	孙业君, 黄耘, 刘泽民, 郑建常, 江昊琳, 李婷婷, 叶青, 方韬. 郯庐断裂带鲁苏皖段及邻区构造应力场特征及其动力学意义[J]. 地震地质, 2021, 43(5): 1188-1207.
[6]	计昊旻, 李安, 张世民. 基于冲沟右旋水平位错的安丘-莒县断裂地震特征位移分析[J]. 地震地质, 2021, 43(3): 471-487.
[7]	徐志国, 王君成, 王宗辰, 梁姗姗, 史健宇. 2019年11月14日印尼马鲁古海7.1级地震的震源机制及海啸数值模拟[J]. 地震地质, 2020, 42(6): 1417-1431.
[8]	顾勤平, 康清清, 张鹏, 孟科, 吴珊珊, 李正楷, 王俊菲, 黄群, 蒋新, 李大虎. 郯庐断裂带中南段及邻区Rayleigh波相速度与方位各向异性[J]. 地震地质, 2020, 42(5): 1129-1152.
[9]	顾勤平, 许汉刚, 晏云翔, 赵启光, 李丽梅, 孟科, 杨浩, 王金艳, 蒋新, 马董伟. 郯庐断裂带新沂段地壳浅部结构和断裂活动性探测[J]. 地震地质, 2020, 42(4): 825-843.
[10]	章鑫, 杜学彬. 郯庐断裂带南段对近地表大地电流的分异性[J]. 地震地质, 2020, 42(4): 909-922.
[11]	郑颖平, 杨晓平, 疏鹏, 路硕, 方良好, 石金虎, 黄雄南, 刘春茹. 合肥盆地中郯庐断裂带西支乌云山-合肥断裂最新活动特征[J]. 地震地质, 2020, 42(1): 50-64.
[12]	张继红, 赵国泽, 董泽义, 王立凤, 韩冰, 王庆林, 唐廷梅, 王梅. 郯庐断裂带安丘、莒县电磁台地壳电性结构研究[J]. 地震地质, 2019, 41(5): 1239-1253.
[13]	张鹏, 张媛媛, 李丽梅, 蒋新, 孟科. 郯庐断裂带安丘-莒县断裂江苏段全新世活动的新证据[J]. 地震地质, 2019, 41(3): 576-586.
[14]	石峰, 何宏林, 周本刚, 魏占玉, 毕丽思. 马尼拉海沟地震海啸对中国大陆的影响[J]. 地震地质, 2018, 40(3): 579-589.
[15]	翁爱华, 李建平, 范小平, 李斯睿, 韩江涛, 李大俊, 李亚彬, 赵祥阳, 唐裕. 大地电磁测深揭示的1668年郯城8.5级地震震中地壳精细结构[J]. 地震地质, 2018, 40(2): 396-409.