1970年通海7.7级大地震强余震触发

Abstract

Abstract: The Tonghai great earthquake occurred on Jan. 5, 1970 in Yunnan Province. After the main shock, several large aftershocks (M_S>5.0) occurred. Calculations of the change in Coulomb failure stress on aftershock failure plane reveal that 4 events among 5 large aftershocks occurred in areas with ΔCFS>0 (10^-2~10^-1 MPa); There are two contrary results for one aftershock due to two different focal mechanism, this aftershock occurred in areas with ΔCFS>0 and ΔCFS<0. It is concluded that the permanent fault displacement due to the main shock is the main causation of activity of large aftershocks.

Key words: Earthquake triggering, Coulomb failure stress, Tonghai great earthquake

CLC Number:

P315.72

HAO Ping, FU Zheng-xiang, TIAN Qin-jian, LIU Gui-ping, LIU Jie. The tress triggering of large aftershocks following the 1970 Tonghai great earthquake (M=7.7)[J]. EARTHQUAKE, 2004, 24(2): 38-46.

References

[1] Harris R A. Introduction to special section: Stress triggers, stress shadows, and implications for seismic hazard[J]. J Geophys Res, 1998, 103: 24347-24358.
[2] Stein R S, Barka A A, Dieterich J H. Progressive failure on the North Anatolian fault since 1939 by earthquake stress triggering[J]. Geophys J Int, l997, 128, 594-604.
[3] Reasenberg P A, Simpson R W. Response of regional seismicity to the static stress change produced by the Loma Prieta earthquake[J]. Science, 1992, 255: 1687-1690.
[4] King G C P, Stein R S, Lin J. Static stress changes and the triggering of earthquakes[J]. Bull Seism Soc Amer, 1994, 84: 935-953.
[5] Hardebeck J L, Nazareth J J, Hauksson E. The static stress change triggering model: Constraints from two southern California aftershock sequences[J]. J Geophys Res, 1998, 98: 4461-4472.
[6] Toda S. 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: 24543-24565.
[7] 刘桂萍, 傅征祥. 1973年炉霍大地震(M_S=7.6)最大余震(M_S=6.3)的库仑破裂应力触发[J]. 中国地震, 2002, 18(2): 175-182.
[8] 万永革, 吴忠良, 周公威, 等.几次复杂地震中不同破裂事件之间的“应力触发”问题[J]. 地震学报, 2000, 22(6): 568-576.
[9] Simpson R W, Reasenberg P A. Earthquake-induced static stress changes on central California faults[A]. In: Simpson R W eds. The Loma Prieta, California Earthquake of October 17, 1989-Tectonic processes and models[C]. U S Geol Surv Prof Pap, 1994. F55-F89.
[10] 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, 258: 1328-1332.
[11] Okada Y. Internal deformation due to shear and tensile faults in a half-space[J]. Bull Seism Soc Amer, 1992, 82: 1018-1040.
[12] 刘祖荫, 皇甫岗, 金志林. 一九七○年通海地震[M]. 北京: 地震出版社, 1999.
[13] 王椿镛, 朱成男, 刘玉权, 等. 用地形变资料测定通海地震的地震断层参数[J]. 地球物理学报, 1978, 21(3): 191-198.
[14] 马宗晋, 傅征祥, 张郢珍, 等. 1966～1976年中国九大地震[M]. 北京: 地震出版社, 1982.
[15] Varga P. Influence of extermal force on the triggering of earthquakes[J]. Earthq Prediction Res, 1985, 1: 191-201.
[16] 马杏垣. 重力作用与构造运动[M]. 北京: 地震出版社, 1989.

The tress triggering of large aftershocks following the 1970 Tonghai great earthquake (M=7.7)

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	YAN Kun, WANG Wei-jun, KOU Hua-dong, YE Zhi-peng. The Aftershock Evolution and Earthquake Triggering of the 2022 Menyuan M_S6.9 Earthquake [J]. EARTHQUAKE, 2023, 43(1): 15-32.
[2]	ZHOU Yun, ZHAO Guo-qiang, WANG Xun, WANG Wei-min. Study on Stress Triggering Relationship of Two M_W>7.5 Alaska Earthquakes in 2020 [J]. EARTHQUAKE, 2022, 42(4): 47-59.
[3]	WANG Yu-ting, WANG Wu-xing, ZHOU Xin, LIU Qi, ZHU Yu-Fei. Inversion of Fault Slip from the 2020 Alaska M_W7.8 Earthquake and its Triggering Effects [J]. EARTHQUAKE, 2022, 42(2): 111-122.
[4]	LIU Wen-bing, ZHANG Lei. Tempo-spatial Correlation among Strong Earthquakesin the Bayan Har Block [J]. EARTHQUAKE, 2016, 36(1): 24-31.
[5]	XU Jing, LI Hai-yan, SHAO Zhi-gang, FENG Jian-gang, ZHANG Zhu-qi. Effects of the 2015 Nepal M_S8.1 Earthquake on Mainland China based on Coulomb Stress Changes [J]. EARTHQUAKE, 2016, 36(1): 69-77.
[6]	XU Jing, SHAO Zhi-gang, MA Hong-sheng, ZHANG Lang-ping. Impact of the 2008 Wenchuan 8.0 and the 2013 Lushan 7.0 Earthquakes along the Longmenshan Fault Zone on Surrounding Faults [J]. EARTHQUAKE, 2014, 34(4): 40-49.
[7]	WU Pei-zhi, SUN Jian-bao, XU Ping, XING Cheng-qi, HU Le-yin, LIANG Fang, HUANG Yurrui, SHI Yu-fang, JI Hong. Responses of the East Component of Beijing GNSS Continuous Stations to the 2011 Japan M_w9.0 Earthquake [J]. EARTHQUAKE, 2014, 34(4): 152-157.
[8]	CAO Jian-ling, ZHANG Jing, WANG Hui. An Issue on Coulomb Static Stress Triggering Study: Applied to the 2012 Yushu Earthquake [J]. EARTHQUAKE, 2012, 32(4): 83-91.
[9]	ZHAO Xiao-yan, SHENG Shu-zhong, LI Cui-qin, BU Yu-fei. Study on the Displacement Field and Coulomb Failure Stress Generated by the 2010 Yushu Earthquake [J]. EARTHQUAKE, 2012, 32(3): 117-124.
[10]	LI Jin, JIANG Hai-kun. A Reviw on Tidal Triggering of Earthquakes [J]. EARTHQUAKE, 2011, 31(4): 36-47.
[11]	WANG Qiong, WANG Hai-tao. Influences of Surrounding Strong Earthquakes on Moderate to Strong Earthquake Activities within Xinjiang [J]. EARTHQUAKE, 2009, 29(2): 88-97.
[12]	ZHOU Long-quan, MA Hong-sheng, XIA Hong, ZHOU Jun-jie, SHAO Zhi-gang. Large aftershocks triggering by coulomb failure stress following the 2007 M_S8.5 and 8.3 Sumatra great earthquakes [J]. EARTHQUAKE, 2008, 28(1): 40-46.
[13]	WANG Qiong, WANG Hai-tao, ZHAO Wei-ming, NIE Xiao-hong. Possible reason of quiescence of strong earthquake in Kashi-Wuqia Region in recent years [J]. EARTHQUAKE, 2007, 27(2): 99-111.
[14]	HAO Ping, LIU Jie, HAN Zhu-jun, FU Zheng-xiang. Dynamic stress triggering of three subsequent moderately strong earthquakes in China's mainland following the Indonesia M_S8.7 Earthquake [J]. EARTHQUAKE, 2006, 26(3): 26-36.
[15]	CHEN Hua-ran, LI Yi-qun, MA Hong-sheng, WANG Jiang-guo. Preliminary study on strong earthquake occurred in groups based on the theory of fault interaction [J]. EARTHQUAKE, 2003, 23(3): 51-56.