|本期目录/Table of Contents|

[1]卜祝源,李玉江,唐磊,等.基于钻孔应变观测约束的2016年新疆呼图壁M6.2地震的发震断层研究*[J].地震研究,2021,44(01):64-71.
　BU Zhuyuan,LI Yujiang,TANG Lei,et al.Seismogenic Fault of the 2016 Hutubi M6.2 Earthquake Constraint from the Borehole Strain Observations[J].Journal of Seismological Research,2021,44(01):64-71.
点击复制

基于钻孔应变观测约束的2016年新疆呼图壁M6.2地震的发震断层研究*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
44
期数:
2021年01期
页码:
64-71
栏目:
出版日期:
2021-01-15

文章信息/Info

Title:
Seismogenic Fault of the 2016 Hutubi M6.2 Earthquake Constraint from the Borehole Strain Observations
作者:
卜祝源; 李玉江; 唐磊; 荆燕; 陈连旺
(应急管理部国家自然灾害防治研究院,北京 100085)
Author(s):
BU Zhuyuan; LI Yujiang; TANG Lei; JING Yan; CHEN Lianwang
(National Institute of Natural Hazards,Ministry of Emergency Management of China,Beijing 100085,China)
关键词:
呼图壁M6.2地震;  钻孔应变观测;  同震应变阶;  同震应力场;  弹性位错理论
Keywords:
Hutubi M6.2 earthquake;  borehole strain observation;  coseismic strain step;  coseismic stress field;  elastic dislocation theory
分类号:
P315.725
DOI:
-
摘要:
利用北天山地区的钻孔应变观测资料,分析2016年呼图壁M6.2地震同震应变阶跃的张、压性特征。结合余震精定位方法等给出的震源参数,基于弹性位错理论,模拟不同震源参数下的同震应变阶跃的张、压性特征。通过对钻孔应变张、压性的模拟值与实测值进行对比分析,研究呼图壁M6.2地震的发震断层。结果表明:① 震中附近4个四分量钻孔应变台站数据自检性能较好,且多记录到明显的同震应变阶跃,其中,呼图壁、石场、巴伦台应变阶跃较为明显,张、压性变化最大值分别达2.5×10-8和-3.4×10-8; ② 在地震震源参数为293°/64°/90°(走向/倾角/滑动角)、发震断层面倾向北时,钻孔应变张、压性的模拟值与实测值最为吻合,呼图壁M6.2地震的发震断层极有可能为一条倾向北的高角度逆冲型盲断层。本文结果为认识呼图壁M6.2地震的发震构造提供重要力学依据。
Abstract:
In this paper,using the borehole strain observation data in the northern Tien Shan area,we analyzed the tensile-compressive characteristics of the coseismic strain step associated with the Hutubi M6.2 earthquake.Based on different source parameters by aftershock relocation etc.,we simulated the tensile-compressive characteristics of the coseismic strain step by the elastic dislocation theory.Through comparing the tensile-compressive characteristics between the modeled and the observed results,we analyzed the seismogenic fault of the Hutubi M6.2 earthquake.The results show that:① The data of the four four-component borehole strain observation stations near the epicenter have the good self-checking performance,which also record the coseismic strain steps successfully.Among them,the strain steps at Hutubi,Shichang and Baluntai stations are more obvious,and the maximum values of the tension and compression of the coseismic strain steps are 2.5×10-8 and-3.4×10-8,respectively.② When the seismic source parameters are 293 ° /64 ° /90 °(strike /dip /rake)and the fault plane inclines to the north,the simulated values of strain tension and compression of borehole are fit well with the measured values,therefore we induced that the Hutubi M6.2 earthquake most likely occurred on a north-trending high-angle blind thrust fault.The results provide an important mechanical basis for understanding the seismotectonics of the 2016 Hutubi M6.2 earthquake.

参考文献/References:

陈科,Gumiaux C,Augier R,等.2014.地质观测、地震剖面和重力测量的综合方法在前陆褶皱冲断带的应用:以天山北麓呼图壁河剖面为例[J].地球物理学报,57(1):75-87.
邓起东,冯先岳,张培震,等.1999.乌鲁木齐山前坳陷逆断裂—褶皱带及其形成机制[J].地学前缘,6(4):191-201.
房立华,吴建平,王未来,等.2013.四川芦山MS7.0级地震及其余震序列重定位[J].科学通报,58(20):19-27.
高丽娟,赵彬彬,邢喜民,等.2018.巴伦台分量钻孔应变在呼图壁MS6.2地震前的短临异常初探[J].大地测量与地球动力学,38(8):102-106.
刘保金,沈军,张先康,等.2007.深地震反射剖面揭示的天山北缘乌鲁木齐坳陷地壳结构和构造[J].地球物理学报,50(5):1464-1472.
刘建明,王琼,李金,等.2018.2016年12月8日呼图壁MS6.2地震序列重定位与发震构造[J].地震地质,40(3):566-578.
欧阳祖熙,张宗润,舒桂林.2004.中国西部钻孔应变仪台网工作回顾与前瞻[J].岩石力学与工程学报,23(23):4058-4062.
邱泽华,石耀霖,欧阳祖熙.2005.四分量钻孔应变观测的实地相对标定[J].大地测量与地球动力学,25(1):118-122.
邱泽华,石耀霖.2003.地震造成远距离应力阶变的观测实例[J].中国科学:地球科学,33(S1):60-64.
邵学钟,张家茹,范会吉,等.1996.天山造山带地壳结构与构造:乌鲁木齐—库尔勒地震转换波测深剖面[J].地球物理学报,39(3):336-346.
唐磊,吕品姬.2015.钻孔四分量应变观测数据不同时间尺度的自检分析[J].大地测量与地球动力学,35(3):525-528.
徐志国,梁姗姗,邹立晔,等.2019.2016年12月8日新疆呼图壁MS6.2主震震源机制及余震序列定位[J].地震地质,41(1):44-57.
杨文,程佳,姚琪,等.2018.2016年新疆呼图壁6.2级地震发震构造[J].地震地质,40(5):1100-1114.
杨晓平,李安,黄伟亮.2012.天山北麓活动褶皱带晚第四纪时期隆升的差异性[J].中国科学:地球科学,42(12):1877-1888.
张培震,邓起东,徐锡伟,等.1994.盲断裂、褶皱地震与新疆1906年玛纳斯地震[J].地震地质,16(3):193-204.
Allen M B,Vincent S J,Wheeler P J.1999.Late Cenozoic tectonics of the Kepingtage thrust zone:interactions of the Tien Shan and Tarim Basin,Northwest China[J].Tectonics,18(4):639-654.
Asai Y,Okubo M,Ishii H,et al.2005.Co-seismic strain-steps associated with the 2004 off the Kii peninsula earthquakes-Observed with Ishii-type borehole strainmeters and quartz-tube extensometers[J].Earth,Planets and Space,57(4):309-314.
Avouac J P,Tapponnier P,Bai M,et al.1993.Active thrusting and folding along the northern Tien Shan and late Cenozoic rotation of the Tarim relative to Dzungaria and Kazakhstan[J].Journal of Geophysical Research:Solid Earth,98(B4):6755-6804.
Barbour A J,Agnew D C,Wyatt F K.2015.Coseismic strains on plate boundary observatory borehole strainmeters in southern California[J].Bulletin of the Seismological Society of America,105(1):431-444.
Burchfiel B,Brown E,Deng Q,et al.1999.Crustal shortening on the margins of the Tien Shan,Xinjiang,China[J].International Geology Review,41(8):665-700.
Charvet J,Shu L S,Laurent-Charvet S,et al.2011.Palaeozoic tectonic evolution of the Tianshan belt,NW China[J].Science China Earth Sciences,54(2):166-184.
Chuang R Y,Johnson K M,Kuo Y T,et al.2014.Active back thrust in the eastern Taiwan suture revealed by the 2013 Rueisuei earthquake:Evidence for a doubly vergent orogenic wedge?[J].Geophysical Research Letters,41(10):3464-3470.
Gladwin M T,Gwyther R L,Hart R H G,et al.1994.Measurements of the strain field associated with episodic creep events on the San Andreas Fault at San Juan Bautista,California[J].Journal of Geophysical Research:Solid Earth,99(B3):4559-4565.
Gong Z,Jing Y,Li H,et al.2019.Static-dynamic strain response to the 2016 M6.2 Hutubi earthquake(eastern Tien Shan,NW China)recorded in a borehole strainmeter network[J].Journal of Asian Earth Sciences,183:103958.
Guan S,Stockmeyer J M,Shaw J H,et al.2016.Structural inversion,imbricate wedging,and out-of-sequence thrusting in the southern Junggar fold-and-thrust belt,northern Tian Shan,China[J].AAPG Bulletin,100(9):1443-1468.
Johnston M J S,Borcherdt R D,Linde A T,et al.2006.Continuous borehole strain and pore pressure in the near field of the 28 September 2004 M6.0 Parkfield,California,earthquake:Implications for nucleation,fault response,earthquake prediction,and tremor[J].Bulletin of the Seismological Society of America,96(4B):S56-S72.
Li Y,Wei D,Tian H,et al.2018.The 3-D structural model of an out-of-sequence earthquake in China:Implication for the reactivation of positive inversion structures along the northern Tianshan Fold-and-Thrust Belt[J].Tectonics,37(12):4359-4376.
Liu G,Qiao X,Xiong W,et al.2017.Source models for the 2016 MW6.0 Hutubi earthquake,Xinjiang,China:A possible reverse event[J].Geodesy and Geodynamics,8(5):311-318.
Lu R,He D,Xu X,et al.2018.Seismotectonics of the 2016 M6.2 Hutubi earthquake:Implications for the 1906 M7.7 Manas earthquake in the northern Tian Shan belt,China[J].Seismological Research Letters,89(1):13-21.
Molnar P,Tapponnier P.1975.Cenozoic tectonics of Asia:effects of a continental collision[J].Science,189(4201):419-426.
Nykolaishen L,Dragert H,Wang K,et al.2015.GPS observations of crustal deformation associated with the 2012 MW7.8 Haida Gwaii earthquake[J].Bulletin of the Seismological Society of America,105(2B):1241-1252.
Okada Y.1985.Surface deformation due to shear and tensile faults in a half-space[J].Bulletin of the Seismological Society of America,75(4):1135-1154.
Qiu Z,Tang L,Zhang B,et al.2013.In situ calibration of and algorithm for strain monitoring using four-gauge borehole strainmeters(FGBS)[J].Journal of Geophysical Research:Solid Earth,118(4):1609-1618.
Stagpoole V,Nicol A.2008.Regional structure and kinematic history of a large subduction back thrust:Taranaki Fault,New Zealand[J].Journal of Geophysical Research:Solid Earth,113(B1):B01403.
Vigny C,Simons W,Abu S,et al.2005.Insight into the 2004 Sumatra-Andaman earthquake from GPS measurements in southeast Asia[J].Nature,436(7048):201-206.
Waldhauser F,Ellsworth W L.2000.A double-difference earthquake location algorithm:Method and application to the northern Hayward fault,California[J].Bulletin of the Seismological Society of America,90(6):1353-1368.
Wang C Y,Yang Z E,Luo H,et al.2004.Crustal structure of the northern margin of the eastern Tien Shan,China,and its tectonic implications for the 1906 M～7.7 Manas earthquake[J].Earth and Planetary Science Letters,223(1-2):187-202.
Wang R,Lorenzo-Martín F,Roth F.2006.PSGRN/PSCMP—a new code for calculating co-and post-seismic deformation,geoid and gravity changes based on the viscoelastic-gravitational dislocation theory[J].Computers and Geosciences,32(4):527-541.
Wang X,Xu C,Wen Y,et al.2019.The 2016 MW6.0 Hutubi earthquake:A blind thrust event along the northern Tian Shan front[J].Journal of Asian Earth Sciences,173(APR.15):79-87.
Wessel P,Smith W H,Scharroo R,et al.2013.Generic mapping tools:improved version released[J].Eos,Transactions American Geophysical Union,94(45):409-410.
Xiao W J,Zhang L C,Qin K Z,et al.2004.Paleozoic accretionary and collisional tectonics of the Eastern Tianshan(China):implications for the continental growth of central Asia[J].American Journal of Science,304(4):370-395.
Xu Z Q,Dilek Y,Yang J S,et al.2015.Crustal structure of the Indus-Tsangpo suture zone and its ophiolites in southern Tibet[J].Gondwana Research,27(2):507-524.
Yang Y H,Hu J C,Chen Q,et al.2019.A blind thrust and overlying folding earthquake of the 2016 MW6.0 Hutubi earthquake in the Northern Tien Shan Fold‐and‐Thrust Belts,China[J].Bulletin of the Seismological Society of America,109(2):770-779.
Yin A,Nie S,Craig P,et al.1998.Late Cenozoic tectonic evolution of the southern Chinese Tian Shan[J].Tectonics,17(1):1-27.
Zelilidis A,Papatheodorou G,Maravelis A G,et al.2016.Interplay of thrust,back-thrust,strike-slip and salt tectonics in a fold and thrust belt system:an example from Zakynthos Island,Greece[J].International Journal of Earth Sciences,105(7):2111-2132.
Zubovich A V,Wang X Q,Scherba Y G,et al.2010.GPS velocity field for the Tien Shan and surrounding regions[J].Tectonics,29(6):TC6041.

备注/Memo

备注/Memo:
收稿日期:2020-03-10
基金项目:国家自然科学基金(41574081,41874116)和中央公益性科研院所基本科研业务专项(ZDJ2019-16,ZDJ2016-21)联合资助.
更新日期/Last Update: 2021-01-15