辽东半岛中强地震活动及其与构造相关性

doi:10.3969/j.issn.0253-4967.2013.02.009

摘要/Abstract

摘要：

辽东半岛是中强地震活动较多的地区,除1975年海城7.3级地震外,这一地区还记录了≥5级地震19次.区内中强地震分布具有较好的规律性,基本上局限于地震活动条带及其网格的结点部位,空间分布上与金州断裂、鸭绿江断裂等NE—NNE向断裂及其共轭的NW向构造一致,且多发于2组构造交会部位的构造盆地或偏于NW向的构造带附近.NE—NNE向和NW向断裂是在现今NEE向近水平主压应力作用下所形成的一对平移走滑性质为主的共轭剪切破裂面,NE—NNE向断裂属于继承性破裂,规模大,对区域地质构造格局及其演化具有控制作用; NW向断裂多属于新生破裂,其规模通常同与其交会的NE—NNE向断裂有一定的相关性.研究表明,辽东半岛中强地震活动受到了NE—NNE向断裂的控制,但其发震构造基本上是NW向断裂,同时,与NW向断裂的规模相关联,中强地震活动存在由N向S、由W向E逐渐减弱的变化规律,地震强度大致从7～7.5级降为5.5～6级.

关键词: 辽东半岛, 地震, 金州断裂, NE—NNE向构造, NW向构造, 共轭构造

Abstract:

Moderate-strong earthquakes happened very frequently in the Liaodong peninsula. In addition to the Haicheng M7.3 earthquake in 1975,there are also 19 earthquakes of M≥5 recorded in this area. The earthquakes are distributed regularly,mainly restricted to seismic belts or to the grid nodes. The spatial distribution is accordant to the NE-NNE trending faults such as the Jinzhou Fault,the Yalujiang Fault,and to the NW-trending conjugated ones. Moderate-strong earthquakes happened mostly near the tectonic basins where two sets of faults intersect,or close to the NW-trending tectonic belt. The NE-NNE and NW-trending faults are a pair of conjugate sheer fracture planes characterized mainly by lateral strike-slip movement under the action of the contemporary NEE-directed near-horizontal principal stress. The NE-NNE faults belong to the inheritance fault,which control the regional geological tectonic pattern and its evolution,often large in size; while the NW ones mostly belong to newly-generated fault,and their size is usually related to the size of NE-NNE faults they conjugate with. The study shows that the moderate-strong earthquakes in the Liaodong peninsula are controlled mainly by the NE-NNE structures,and the seismogenic structures are basically the NW faults. Meanwhile,correlated with the size of the NW faults,the moderate-strong earthquake activities show a trend of decreasing gradually from north to south and from west to east,and the magnitude of them decreases roughly from M7～7.5 to M5.5～6 or so.

Key words: Liaodong peninsula, earthquake, Jinzhou Fault, NE-NNE-trending structure, NW-trending structure, conjugate structure

中图分类号:

P315.2

万波, 贾丽华, 戴盈磊, 索锐. 辽东半岛中强地震活动及其与构造相关性[J]. 地震地质, 2013, 35(2): 300-314.

WAN Bo, JIA Li-hua, DAI Ying-lei, SUO Rui. MODERATE-STRONG EARTHQUAKES AND THEIR TECTONIC CORRELATION IN THE LIAODONG PENINSULA[J]. SEISMOLOGY AND GEOLOGY, 2013, 35(2): 300-314.

参考文献

陈金海,刘赛君.1995.中国东部大陆板内地震的共轭破裂特征［J］.世界地震译丛,26(4): 39—45.
CHEN Jin-hai,LIU Sai-jun.1995.Conjugate fracture features of continental intraplate earthquakes in eastern China ［J］.Translated World Seismology,26(4): 39—45(in Chinese).
丁国瑜,李永善.1979.中国地震活动与地壳现代破裂网络［J］.地质学报,3(1): 22—34.
DING Guo-yu,LI Yong-shan.1979.Seismicity and the recent fracturing pattern of the earth crust in China ［J］.Acta Geologica Sinica,3(1): 22—34(in Chinese).
高常波,钟以章.1998.东北输油管道场地断层活动性与地震危险性研究［M］.北京: 地震出版社.103—159.
GAO Chang-bo,ZHONG Yi-zhang.1998.Fault Activity and Seismic Risk Research for Petroleum Transmission Pipeline in NE China ［M］.Seismological Press,Beijing.103—159(in Chinese).
国家地震局科技发展司.1999.中国近代地震目录(M_S≥4 3/4 , 公元1912—1990年) ［M］.北京: 中国科学技术出版社.81—102.
Science and Technology Development Department,State Seismological Bureau.1999.Catalogue of Chinese Earthquakes(M_S≥4 3/4 , 1912—1990) ［M］.China Science and Technology Press,Beijing.81—102(in Chinese).
国家地震局震害防御司.1995.中国历史强震目录［M］.北京: 地震出版社.57—75,288—323.
Earthquake Damage Prevention Department,State Seismological Bureau.1995.Catalogue of Historical Strong Earthquakes in China ［M］.Seismological Press,Beijing.57—75,288—323(in Chinese).
环文林,张晓东,宋昭仪.1995.中国大陆内部走滑型发震构造的构造变形场特征［J］.地震学报,17(2): 139—147.
HUAN Wen-lin,ZHANG Xiao-dong,SONG Zhao-yi.1995.Characteristics of tectonic deformation field about strike-slip earthquake-generating structure in the Chinese mainland ［J］.Acta Seismologica Sinica,17(2): 139—147(in Chinese).
黄玮琼,李文香.1994.中国大陆地震资料完整性研究之一: 以华北地区为例［J］.地震学报,16(3): 273—280.
HUANG Wei-qiong,LI Wen-xiang.1994.Research on the completeness of earthquake data in the Chinese mainland(I): North China ［J］.Acta Seismologica Sinica,16(3): 273—280(in Chinese).
焦明若,唐春安,张国民,等.2003.细观非均匀性对岩石破裂过程和微震序列类型影响的数值试验研究［J］.地球物理学报,46(5): 659—666.
JIAO Ming-ruo,TANG Chun-an,ZHANG Guo-min,et al.2003.Numerical test of influence of mesoscopic heterogeneity on macroscopic behavior of rock failure and seismic sequence types ［J］.Chinese Journal of Geophysics,46(5): 659—666(in Chinese).
江娃利,李咸业,张英礼,等.1999.辽宁海城NW向构造全新世活动特征及古地震研究 .见: 中国地震局地壳应力研究所编.地壳构造与地壳应力文集.北京: 地震出版社.33—42.
JIANG Wa-li,LI Xian-ye, ZHANG Ying-li, et al.1999.Study on Holocene activity characteristics of NW-trending structure and paleo-earthquakes in Haicheng,Liaoning .In: Institute of Crustal Dynamics,CSB(ed).Corpus of Crustal Structure and Crustal Dynamics. Seismological Press,Beijing.33—42(in Chinese).
李荣安.1985.海城地震双向构造活动的研究［J］.地震学报,7(4): 385—397.
LI Rong-an.1985.A study on the bidirectional tectonic activity of the Haicheng earthquake ［J］.Acta Seismologica Sinica,7(4): 385—397(in Chinese).
李四光.1969.地质力学概论［M］.北京: 科学出版社.74—81.
LI Si-guang.1969.Introduction to Geomechanics ［M］.Science Press,Beijing.74—81(in Chinese).
李宇彤,万波,等.2010.利用现代小地震分布研究1861年辽宁普兰店东6级地震的震中位置和发震构造［J］.地震地磁观测与研究,31(1): 17—24.
LI Yu-tong,WAN Bo,et al.2010.Research about the east of Pulandian M6 earthquake and its causative structure in 1861 in Liaoning Province by the distribution of modern small earthquakes ［J］.Seismological and Geomagnetic Observation and Research,31(1): 17—24(in Chinese).
辽宁省地质矿产局.1989.辽宁省区域地质志［M］.北京: 地质出版社.665—691.
Bureau of Geology and Mineral Resources of Liaoning Province.1989.Regional Geology of Liaoning Province ［M］.Geological Publishing House,Beijing.665—691(in Chinese).
刘国海,韩慕康.1993.大连半岛地貌、新构造运动与市区安全性［J］.地理学报,48(3): 227—234.
LIU Guo-hai,HAN Mu-kang.1993.Geomorphology,neotectonic movements and the safety degree of the city on the Dalian peninsula,Northeast China ［J］.Acta Geographica Sinica,48(3): 227—234(in Chinese).
卢造勋,刘国栋,等.1990.中国辽南地区地壳与上地慢介质的横向不均匀性与海城 7.3级地震［J］.地震学报,12(4): 367—378.
LU Zao-xun,LIU Guo-dong,et al.1990.Lateral inhomogeneity of crust and upper mantle in south Liaoning,China and its relationship with the M7.3 Haicheng earthquake ［J］.Acta Seismologica Sinica,12(4): 367—378(in Chinese).
卢造勋,夏怀宽.1993.内蒙古东乌珠穆沁旗至辽宁东沟地学断面［J］.地球物理学报,36(6): 765—772.
LU Zao-xun,XIA Huai-kuan.1993.Geoscience transect from East Ujimqinqi,Nei Mongol,to Dongguo,Liaoning,China ［J］.Chinese Journal of Geophysics,36(6): 765—772(in Chinese).
马杏垣主编.1989.中国岩石圈动力学地图集［M］.北京: 中国地图出版社.32—33.
MA Xing-yuan (ed).1989.Atlas of Chinese Lithosphere Dynamics ［M］.Sinomaps Press,Beijing.32—33(in Chinese).
平田隆幸,孙永华.1990.断层与分数维［J］.地震地质译丛,12(1): 53—56.
Hirata Takako,SUN Yong-hua.1990.Faults and fractal dimension ［J］.Translated Works on Seismogeology,12(1): 53—56(in Chinese).
万波.2000.岫岩-海城5.6级地震地质背景及其发震构造［J］.东北地震研究,16(2): 27—32.
WAN Bo.2000.Seismogological features and seismogenic structure of the Haicheng-Xiuyan M_S5.6 earthquake ［J］.Seismological Research of Northeast China,16(2): 27—32(in Chinese).
万波,李宇彤,郑双成.2010.1861年普兰店东6级地震发震构造判定［J］.中国地震,26(3): 304—313.
WAN Bo,LI Yu-tong,ZHENG Shuang-cheng.2010.Determination of seismogenic structure for the east of Pulandian M6.0 earthquake in 1861 ［J］.Earthquake Research in China,26(3): 304—313(in Chinese).
万波,廖旭,翟文杰,等.2010.大连市活断层探测与地震危险性评价［M］.大连: 大连出版社.20—35,64—81.
WAN Bo,LIAO Xu,ZHAI Wen-jie,et al.2010.Active Fault Survey and Seismic Hazard Evaluation for Dalian City ［M］.Dalian Publishing House,Dalian.20—35,64—81(in Chinese).
万波,钟以章.1997.东北地区的新构造运动特征分析及新构造运动分区［J］.东北地震研究,13(4): 64—75.
WAN Bo,ZHONG Yi-zhang.1997.Analysis on the features and division of neotectonic movement in Northeast China ［J］.Seismological Research of Northeast China,13(4): 64—75(in Chinese).
闻学泽,徐锡伟,龙锋,等.2007.中国大陆东部中-弱活动断层潜在地震最大震级评估的震级-频度关系模型［J］.地震地质,29(2): 236—253.
WEN Xue-ze,XU Xi-wei,LONG Feng,et al.2007.Frequency-magnitude relationship models for assessment of maximum magnitudes of potential earthquakes on moderately and weakly active faults in eastern China mainland ［J］.Seismology and Geology,29(2): 236—253(in Chinese).
吴戈,等.1994.东北大陆历史地震研究［M］.成都: 地图出版社.15—70.
WU Ge,et al.1994.Research on Historical Earthquakes in NE China ［M］.Chengdu Cartographic Publishing House,Chengdu.15—70(in Chinese).
吴戈,刘昌森,翟文杰,等.1995.黄海及其沿岸历史地震编目与研究［M］.北京: 地震出版社.58—68.
WU Ge,LIU Chang-sen, ZHAI Wen-jie, et al.1995.Catalogue Research for Historical Earthquakes around the Yellow Sea ［M］.Seismological Press,Beijing.58—68(in Chinese).
吴戈,房贺岩,李志田,等.1992.东北地震史料辑览［M］.北京: 地震出版社.148—155.
WU Ge,FANG He-yan,LI Zhi-tian,et al.1992.General Survey of Historical Earthquakes in Northeast China ［M］.Seismological Press,Beijing.148—155(in Chinese).
夏怀宽,许东满.1993.鸭绿江断裂(南段)的特征、活动性与地震［J］.地震研究,16(4): 391—400.
XIA Huai-kuan,XU Dong-man.1993.Features of Yalujiang River Fault(south segment)activity and seismicity ［J］.Journal of Seismological Research,16(4): 391—400(in Chinese).
谢新生,王维襄.2002.地震共轭破裂及极限主应力随地壳深度的变化: 以1975年海城7.3级地震为例［J］.中国地震,18(2): 166—174.
XIE Xin-sheng,WANG Wei-xiang.2002.Seismic conjugate ruptures and limiting principal stresses accompanying variation of depths in the crust: Take 1975 Haicheng earthquake with M7.3 as an example ［J］.Earthquake Research in China,18(2): 166—174(in Chinese).
张裕明,国文秀,汪良谋.1987.确定辽东半岛潜在震源区的断层活动性研究［J］.地震地质,9(1): 35—41.
ZHANG Yu-ming,GUO Wen-xiu,WANG Liang-mou.1987.Research on the fault activity for determination of the potential hypocentral area for the Liaodong peninsula ［J］.Seismology and Geology,9(1): 35—41(in Chinese).
钟以章,白云.1999.辽东半岛及两侧海域深部构造、活动构造与地震关系研究［J］.华北地震科学,17(2): 59—65.
ZHONG Yi-zhang,BAI Yun.1999.Study on deep tectonics,active tectonics and their relation with earthquakes in Liaodong peninsula and its surrounding sea area ［J］.North China Earthquake Sciences,17(2): 59—65(in Chinese).
钟以章,马宗顺.1991.再考辽宁金州1861年6.0级地震震中位置 .见: 郭增建编.中国历史地震研究文集.北京: 地震出版社.181—184.
ZHONG Yi-zhang,MA Zong-shun.1991.Epicenter retest for the Jinzhou M6.0 earthquake in 1861 .In: GUO Zeng-jian(ed).Corpus of the Chinese Historical Earthquakes. Seismological Press,Beijing.181—184(in Chinese).
钟以章,王立功,朱海之.1986.关于1861年金州6级地震震中位置讨论［J］.地震地质,8(7): 71—75.
ZHONG Yi-zhang,WANG Li-gong,ZHU Hai-zhi.1986.Investigation of epicenter of Jinzhou M=6.0 earthquake of 1861 ［J］.Seismology and Geology,8(4): 71—75(in Chinese).
朱凤鸣.1980.1975年海城地震［M］.北京: 地震出版社.165—195.
ZHU Feng-ming.1980.The Haicheng Earthquake in 1975 ［M］.Seismological Press,Beijing.165—195(in Chinese).
Zhong Y,Gao C.2000.Seismic tectonics in the northeast of China ［J］.Bull Seism Asso Far East,14(1): 70—85.

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