汶川MS8.0地震前地表潜热通量异常

Abstract

Abstract: In this paper, surface latent heat flux (SLHF) data is processed and analyzed before the Wenchuan M_S8.0 earthquake. According to the results, SLHF abnormity appears in local area 7 days before the earthquake. The abnormity information shows weak initially and then becomes strong gradually and becomes weak eventually. SLHF abnormity is very strong when the main earthquake takes place. There are two high SLHF value points which appear in relative low stress area with developed active faults. SLHF abnormity becomes weak quickly after the main shock. SLHF abnormity area migrates with time along main focus faults. 7 days′ synthetic SLHF abnormity area covers around Longmenshan Faults and the epicenter of the main shock locates in the center of the abnormity area.

Key words: Surface Latent Heat Flux, Wenchuan M_S8.0 earthquake, SLHF abnormity, Spatial and temporal distribution

CLC Number:

P315.7

LI Mei, Kang Chun-li, LI Zhi-xiong, JING Feng, XUE Yan, Yan Wei. Abnormal Surface Latent Heat Flux Prior to the Wenchuan M_S8.0 Earthquake[J]. EARTHQUAKE, 2010, 30(3): 64-71.

References

[1] 李金平, 吴立新, 温志勇, 等. 沿海和内陆强震前地表潜热通量异常特征[J]. 科技导报, 2008, 26(5): 40-45.
[2] Dey S, Singh R. Surface Latent Heat Flux as an earthquake precursor[J]. Natural Hazards and Earth System Science, 2003, (3): 749-755.
[3] Cervone G, Panait L, Singh R, et al. An Application of Evolutionary Algorithm to Predict the Extent of SLHF Anomaly Associated with Coastal Earthquakes[J]. Proceedings of GECCO-2004, Genetic and Evolutionary Computation Conference, Seattle, WA, June 26-30, 2004.
[4] Cervone G, Gautam R, Singh R, et al. Association of Surface Latent Heat Flux with Hurricane Isabel[J]. COSPAR-2004, Committee on Space Research, Paris, France, July 18-25, 2004.
[5] Singh P, Cervone G, Singh P V, et al. Generic precursors to coastal earthquakes: Inferences from Denali fault earthquake[J]. Tectonophysics, 2007, (431): 231-240.
[6] 陈梅花, 邓志辉, 杨竹转, 等. 2004年印度尼西亚9级大地震前的潜热通量异常[J]. 科学通报, 2006, 51(1): 118-120.
[7] 中国地震局. 2008年汶川8.0级地震科学总结与反思报告[C]. 2009. 125-130.
[8] 汶川8.0级地震前后原地应力重复测量研究成果[C]. http://www.cea.gov.cn/.
[9] Bina C R. A note on latent heat release from disequilibrium phase transformations and deep seismogenesis[J]. Earth Planets Space, 1998, (50): 1029-1034.
[10] Tronin A A, Hayakawa M, Molchanov O A.Thermal IR satellite data for earthquake research in Japan and China[J]. J Geodyn, 2002, (33): 519-534.
[11] 丁鉴海, 卢振业, 黄雪香. 地震地磁学[M]. 北京: 地震出版社, 1994, p262.
[12] 戴华光, 陈永明, 苏向洲, 等. 天桥沟—黄羊川活动断裂带的几何学和运动学特征[J]. 西北地震学报, 1999, 21(3): 259-267.
[13] 牛安福, 张凌空, 闫伟, 等. 汶川地震前南北地震带中北段地形变变化特征的研究[J]. 地震, 2009, 29(1): 100-107.
[14] 高孟潭, 陈学良, 俞言祥, 等. “5·12”汶川8.0 级地震汉源烈度异常机理的初步探讨[J]. 震灾防御技术, 2008, 3(3): 216-223.
[15] 唐文清, 陈智梁, 刘宇平, 等. 青藏高原东缘鲜水河断裂与龙门山断裂交会区现今的构造活动[J]. 地质通报, 2005, 24(12): 1169-1172.
[16] 江在森, 方颖, 武艳强, 等. 汶川8.0级地震前区域地壳运动与变形动态过程[J]. 地球物理学报, 2009. 52(2): 505-518.
[17] Singh P, Dey S, Bhoi S, et al. Anomalous increase of chlorophyll concentrations associated with earthquakes[J]. Advances in Space Research, 2006, (37): 671-680.　

Abnormal Surface Latent Heat Flux Prior to the Wenchuan M_S8.0 Earthquake

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	SONG Cheng, ZHANG Yong-xian, XIA Cai-yun, ZHANG Xiao-tao. Long-term Ionospheric Evolution Characteristics Associated with the 2008 Wenchuan M_S8.0 Earthquake using Modified Pattern Informatics [J]. EARTHQUAKE, 2019, 39(2): 135-146.
[2]	LI Yan-e, CHEN Xue-zhong. Coulomb Stress Changes Imparted in the Rupture Zones of the Lushan Earthquake and the Kangding Earthquake by the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2019, 39(1): 136-145.
[3]	WU Shan-yi, LIU Qi, GONG Li-wen, ZHANG Zhi-guang. High-Frequency Anormaly Characteristics of Fixed-point Deformation before the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 145-156.
[4]	CHEN Xue-zhong, WANG Heng-xin, WANG Sheng-wen, WEI Yong-gang, GUO Xiang-yun, CHEN Li-juan, LI Yan-e. Effect of the Earth Rotation Deceleration on the Occurrence of the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 127-136.
[5]	XI Ji-lou, GUAN Hua-ping, ZHUANG Nan, LIU Chao, WU Jian-hua, YAN Xiao-ye. Immediate to Long-term Changes of Geoelectric Potential Difference before and after Several Large Earthquakes [J]. EARTHQUAKE, 2018, 38(2): 117-126.
[6]	QIAN Jia-dong, ZHANG Xue-min, WANG Ya-lu, LI Xue-hao. Simulation of the Geo-electricity Anomaly in the NE Direction at Chengdu Station Associated with the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 107-116.
[7]	DONG Yan-fang, HONG Shun-ying, MENG Guo-jie. Post-seismic Surface Deformation of the 2008 Wenchuan M_S8.0 Earthquake based on PSInSAR [J]. EARTHQUAKE, 2018, 38(2): 95-106.
[8]	ZHANG Xiao-tao, LIU Jie, SONG Zhi-ping, XUE Yan, ZHANG Yong-xian, YAN Rui, YUAN Zheng-yi. Temporal and Spatial Evolution of Precursory Anomalies of the 2008 Wenchuan M_S8.0 Earthquake and Mechanical Analysis [J]. EARTHQUAKE, 2018, 38(2): 72-83.
[9]	MENG Guo-jie, SU Xiao-ning, WANG Zhen, LIAO Hua. Joint Inversion for the Rupture Process of the 2008 Wenchuan M_S8.0 Earthquake from 1 Hz GPS, Strong Motion and Teleseismic Data [J]. EARTHQUAKE, 2018, 38(2): 11-27.
[10]	SHAO Zhi-gang, WANG Peng. Reflections on Earthquake Prediction Research Ten Years after the 2008 Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2018, 38(2): 1-10.
[11]	LI Mei, WANG Zhong-ping, LU Jun, TAN Han-dong, ZHANG Xiao-tao. Estimating the Equivalent Dipole of the 2008 Wenchuan M_S8.0 Earthquake using Observed Electromagnetic Ground Signals [J]. EARTHQUAKE, 2018, 38(1): 49-60.
[12]	ZHAO Bo, SHI Yu-tao, GAO Yuan. Relocation of the Wenchuan M_S8.0 Earthquake Sequence [J]. EARTHQUAKE, 2011, 31(2): 1-10.
[13]	An Ou. Mid-long Term Forecast and Short Term Targeting Prediction Method for the 2008 Wenchuan M_S8.0 Earthquake in China [J]. EARTHQUAKE, 2010, 30(4): 89-97.
[14]	FU Zheng-xiang, LU Xiao-jian, JIN Xue-shen ZHAO Hui-cheng, DAI Ying-hua, HAO Ping. Comparative Discussion of the Abnormal Low Slip Rate on the Active Fault of the Wenchuan M_S8.0 Earthquake [J]. EARTHQUAKE, 2010, 30(2): 1-9.
[15]	LU Xian, ZHANG Xiao-dong, ZHOU Long-quan, ZHANG ZHI-wei. Accurate Relocation and Analysis of Earthquakes in the Zipingpu Reservoir Area, Sichuan, China [J]. EARTHQUAKE, 2010, 30(2): 10-19.

Abnormal Surface Latent Heat Flux Prior to the Wenchuan MS8.0 Earthquake

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

Abnormal Surface Latent Heat Flux Prior to the Wenchuan M_S8.0 Earthquake