[1]李 强,王紫燕.台湾造山带主要断层闭锁程度与滑动亏损特征[J].华南地震,2022,(04):48-53.[doi:10.13512/j.hndz.2022.04.07]
LI Qiang,WANG Ziyan.The Blocking Degree and Slip Deficit Characteristics of the Main Faults in the Taiwan Orogenic Belt[J].,2022,(04):48-53.[doi:10.13512/j.hndz.2022.04.07]
点击复制
台湾造山带主要断层闭锁程度与滑动亏损特征()
华南地震[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
-
- 期数:
-
2022年04期
- 页码:
-
48-53
- 栏目:
-
华南地区地震预测指标体系专辑
- 出版日期:
-
2022-12-10
文章信息/Info
- Title:
-
The Blocking Degree and Slip Deficit Characteristics of the Main Faults in the Taiwan Orogenic Belt
- 文章编号:
-
1001-8662(2022)04-0048-06
- 作者:
-
李 强; 王紫燕
-
福建省地震局,福州 350003
- Author(s):
-
LI Qiang; WANG Ziyan
-
Fujian Earthquake Agency , Fuzhou 350003, China
-
- 关键词:
-
断层闭锁; 滑动亏损; 台湾地震; 台湾造山带; GPS速度场
- Keywords:
-
Fault locking; Slip deficit; Taiwan earthquake; Taiwan Orogenic Belt; GPS velocity field
- 分类号:
-
P315
- DOI:
-
10.13512/j.hndz.2022.04.07
- 文献标志码:
-
A
- 摘要:
-
利用2016—2018年GPS水平速度场数据,基于块体旋转与块体边界断层闭锁的负位错模型,反演了台湾造山带主要断层的闭锁程度和滑动亏损,并讨论了断层的强震危险性。结果显示:该区域纵谷断裂北段、狮潭断层、四季断层和潮州断层闭锁程度相对较强,其他断层闭锁程度较弱;结合滑动亏损分布和历史强震活动特征,分析认为纵谷断裂北段、四季断层和潮州断层强震危险性值得关注。
- Abstract:
-
Based on the negative dislocation model of the block rotation and fault locking of the boundary, the paper inverted the blocking degree and the slip deficit of the main faults in the Taiwan Orogenic Belt by using the GPS horizontal velocity field data from 2016 to 2018, and discussed the strong earthquake risk of the faults. The results show that the high locking concentrate on the northern segment of the Longitudinal Valley fault,Shitan fault, Siji fault and Chaozhou fault. The locking degree of others is relatively low. Combining the slip deficit distribution and the characteristics of the historical strong earthquakes in this region, it is concluded that risk of strong earthquakes of the northern segment of the Longitudinal Valley fault,Siji fault and Chaozhou fault should be paid more attention.
参考文献/References:
[1] Huang Z C,Wang L,Zhao D P,et al. Upper mantle structure and dynamics beneath Southeast China[J]. Physics of the Earth and Planetary Interiors,2010,182(3):161-169.
[2]李志伟,胥颐,郝天珧,等.台湾地区的壳幔P波速度和Vp/Vs波速比结构研究[J].中国科学(D辑:地球科学),2009, 39(9):1191-1199.
[3] Yu S B ,Chen H Y,Kuo L C. Velocity field of GPS stations in the Taiwan area[J]. Tectonophysics,1997,274(1):41-59.
[4] Ai Y,Chen Q F,Zeng F,et al. The crust and upper mantle structure beneath southeastern China[J]. Earth and Planetary Science Letters,2007,260(3/4):549-563.
[5] Kim K H,Chiu J M,Pujol J,et al. Three-dimensional VP and VS structural models associated with the active subduction and collision tectonics in the Taiwan region[J]. Geophysical Journal International,2005,162(1):204-220.
[6] Wu F T,Ross Z E,Okaya D,et al. Dense network, intense seismicity and tectonics of Taiwan[J]. Tectonophysics,2016, 692(Pt.B):152-163.
[7] McCaffrey R. Crustal block rotations and plate coupling[M]//Stein S,Freymueller J T eds. Plate boundary zones. Washington D.C.:AGU,2002:101-122. .
[8] Vigny C,Simons W J,Abu S,et al. Insight into the 2004 Sumatra-Andaman earthquake from GPS measurements in southeast Asia[J]. Nature,2005,436(7048):201-206.
[9] McCaffrey R,Qamar A I,King R W,et al. Fault locking, block rotation and crustal deformation in the Pacific northwest[J]. Geophysical Journal International,2007,169 (3):1315-1340.
[10] Manaker D M,Calais E,Freed A M,et al. Interseismic plate coupling and strain partitioning in the northeastern Caribbean[J]. Geophysical Journal International,2008,174 (3):889-903.
[11]赵静,江在森,牛安福,等.喜马拉雅主逆冲断层闭锁程度与滑动亏损特征研究[J]. 武汉大学学报(信息科学版),2017,42(12):1756-1764.
[12]赵静,占伟,任金卫,等.汶川地震后龙门山断层中段愈合过程的GPS时间序列反演[J].测绘学报,2021,50(1):37-51.
[13] Zhao J,Ren J W,Liu J,et al. Coupling fraction and relocking process of the Longmenshan Fault Zone following the 2008 MW7.9 Wenchuan earthquake[J]. Journal of Geodynamics,2020(137):101730.
[14] Zhao J,Yuan Z Y,Ren J W,et al., Acceleration of deep slip along the Longmenshan fault plane before the 2008 M8.0 Wenchuan earthquake[J]. Frontiers in Earth Science, 2022(10):830317.
[15]鲁小飞,谭凯,赵斌,等.汶川地震前后红河断裂闭锁程度和滑动亏损研究[J].大地测量与地球动力学,2019,39 (5):464-469.
[16]李腊月,李玉江,张风霜,等.郯庐断裂带中南段闭锁特征与地震危险性分析[J].地质学报,2020,94(2):138-150.
[17]李海艳,邵志刚,马宏生,等. 基于形变观测分析中国台湾东部花东纵谷断层运动特征[J].地学前缘,2018,25 (1):240-251.
[18] Chang W L,Ching K E,Lee C H,et al. Earthquake potential of active faults in Taiwan from GPS observations and block modeling[J].Seismological Research Letters,2016,87(6):1274-1286.
[19] Nikolaidis R. Observation of geodetic and seismic deformation with the Global Positioning System[D]. San Diego:University of California,2002.
[20] Savage J C,Gan W,Svarc J L. Strain accumulation and rotation in the Eastern California Shear Zone[J]. Journal of Geophysical Research,2001,106(B10):21995.
[21] Mao A,Harrison C G A,Dixon T H. Noise in GPS coordinate time series[J]. Journal of Geophysical Research 1999,104(B2):2797-2816.
[22] Yu S B,Kuo L C. Present-day crustal motion along the Longitudinal Valley Fault,eastern Taiwan[J]. Tectonophy-sics,2001,333(1):199-217.
备注/Memo
- 备注/Memo:
-
收稿日期:2022-03-10
基金项目:中国地震局震情跟踪定向工作任务(2020010201)
作者简介:李强(1985-),男,工程师,主要从事地球动力学研究。E-mail: liqiangies@126.com
更新日期/Last Update:
2022-12-10