2010智利莫尔MW8.8地震对其破裂区及附近地区地震活动性的影响

Abstract

Abstract: The occurrence of a strong earthquake is known to be related to the increase of stress in the crust. The Coulomb stress change has been used to investigate the stress changes in the crust imparted by a strong earthquake. There has been no earthquake of M6.0 in the region south of the rupture zone since the 2010 M_W8.8 Maule earthquake occurred, while eight earthquakes of M6.0 have occurred in the region north of the rupture zone, including the 2015 M_W8.3 Illapel earthquake. Seismicity in the two regions contrasts sharply. In this paper, the Coulomb stress change is used to investigate the stress changes imparted by the 2010 Maule,Chile M_W8.8 earthquake in the two regions. The results show that the Coulomb stress change imparted by the 2010 M_W8.8 Maule earthquake is positive to promote the rupture of earthquakes around north of the rupture zone, and negative to inhibit the rupture of earthquakes in the south.

Key words: the 2010 Maule earthquake, Triggered seismicity, Coulomb stress changes

CLC Number:

P315.7

WU An-xu, CHEN Xue-zhong, LI Yan-e. Effect of the 2010 Maule Mw8.8 Earthquake on the Seismicity around its Rupture Zone[J]. EARTHQUAKE, 2019, 39(1): 146-154.

References

[1] Stein R S , King G C P, Lin J. Change in failure stress on the southern San Andreas fault system caused by the 1992 magnitude=7.4 Landers earthquake[J]. Science, 1992, 258(5086): 1328-1332.
[2] King G C P, Stein R S, Lin J. Static stress changes and the triggering of earthquakes[J]. Bull Seism Soc Am, 1994, 84(3): 935-953.
[3] Harris R A, Simpson R W, Reasenberg P A. Influence of static stress changes on earthquake locations in southern California[J]. Nature, 1995, 375(6528): 221-224.
[4] Harris R A, Simpson R W. In the Shadow of 1857—the effect of the great Ft Tejon earthquake on subsequent earthquakes in Southern California[J]. Geophys Res Lett, 1996, 23(3): 229-232.
[5] Harris R A. Introduction to special section: Stress triggers, stress shadows, and implications for seismic hazard[J]. J Geophys Res, 1998, 103(B1010): 24347-24358.
[6] Stein R S, Barka A, Dieterich J H. Progressive failure on the North Anatolian fault since 1939 by earthquake static stress triggering[J]. Geophys J Int, 1997, 128(3): 594-604.
[7] Toda S, Stein R S, Reasenberg F, et al. Stress transferred by the 1995 M_W=6.9 Kobe, Japan, shock: Effect on aftershocks and future earthquake probabilities[J]. J Geophys Res, 1998, 103(B1010): 24543-24565.
[8] Barka A. The 17 august 1999 Izmit earthquake[J]. Science, 1999, 285(5435): 1858-1859.
[9] Stein R S. The role of stress transfer in earthquake occurrence[J]. Nature, 1999, 402(6762): 605-609.
[10] Mccloskey J, Nalbant S S, Steacy S. Indonesian earthquake: Earthquake risk from co-seismic stress[J]. Nature, 2005, 434(7031): 291.
[11] 沈正康, 万永革, 甘卫军, 等. 东昆仑活动断裂带大地震之间的黏弹性应力触发研究[J]. 地球物理学报, 2003, 46(6): 786-795.
[12] 万永革, 沈正康, 曾跃华, 等. 青藏高原东北部的库仑应力积累演化对大地震发生的影响[J]. 地震学报, 2007, 29(2): 115-129.
[13] 万永革, 盛书中, 李祥, 等. 2015年尼泊尔强震序列对中国大陆的应力影响[J]. 地球物理学报, 2015, 58(11): 4277-4286.
[14] 单斌, 熊熊, 郑勇, 等. 2013年芦山地震导致的周边断层应力变化及其与2008年汶川地震的关系[J]. 中国科学 D辑: 地球科学, 2013, 43(6): 1002 -1009.
[15] Kendrick E, Bevis M, SmalleyJr R, et al. The Nazca—South America Euler vector and its rate of change[J]. J. South Am. Earth Sci. 2003, 16(2): 125-131.
[16] Lay T, Ammon C J, Kanamori H, et al. Teleseismic inversion for rupture process of the 27 February 2010 Chile (M_W8.8) earthquake[J]. Geophys Res Lett, 2010, 38: L13301.
[17] Fred F P, Brooks B, Tong X, et al. Coseismic slip distribution of the February 27, 2010 M_W8.8 Maule, Chile earthquake[J]. Geophys Res Lett, 2011, 38: L09309.
[18] 万永革, 沈正康, 兰从欣. 兰德斯地震断层面及其附近余震产生的位移场研究[J]. 地震学报, 2005, 27(2): 139-146.
[19] 石耀霖, 曹建玲. 中国大地岩石圈等效粘滞系数的计算和讨论[J]. 地震前缘, 2008, 15(3): 82-95.

Effect of the 2010 Maule Mw8.8 Earthquake on the Seismicity around its Rupture Zone

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	LI Hai-yan, MA Hong-sheng, SHAO Zhi-gang, WANG Peng. Analyzing Strong Earthquake Hazard based on Fault Movements and Stress Evolution: A Review [J]. EARTHQUAKE, 2016, 36(1): 87-104.
[2]	JIANG Hai-kun, WU Qiong, JIA Ruo, QU Jun-hao, Chen Ya-nan. On the Major Influencing Factors of Reservoir-related Seismicity in Different Stages: the Case of the Three Gorges Reservoir [J]. EARTHQUAKE, 2014, 34(1): 13-23.