华北b值全时空扫描结果的可靠性及与地震的相关性

EARTHQUAKE ›› 2001, Vol. 21 ›› Issue (3): 8-14.

Previous Articles Next Articles

Reliability of time-space scanning results of b value and correlativity between b vales and earthquakes with M≥5.0 in North China

ZHENG Zhao-bi, LIU Dong-wang, SHEN Xiao-qui, WANG Xue-quan

Seismological Bureau of Anhui Province, Hefei 230031, China

Received:2000-12-12 Revised:2001-03-06 Online:2001-07-31 Published:2022-06-02

Abstract

Abstract: Authors have got the time-space scanning results of b values from 1970～1999 in North China, they analyzed in detail several elements influencing reliability of the results, and obtained fuzzy matrixes and fuzzy results as well. The results show that anomalous indices of b values cannot be determined in the whole time-space range of 2°×2° unit. However, when the seismic anomalous information is bigger than aseismic one, and the research ranges are selected considering the epicenter of earthquake with M≥5.0 and its neighboring area, b<0.65 can be taken as the anomalous indices.

Key words: b value, Fuzzy correlativity, North China

CLC Number:

P315. 7

ZHENG Zhao-bi, LIU Dong-wang, SHEN Xiao-qui, WANG Xue-quan. Reliability of time-space scanning results of b value and correlativity between b vales and earthquakes with M≥5.0 in North China[J]. EARTHQUAKE, 2001, 21(3): 8-14.

[1]	YUE Xiao-yuan, LI Yan-e, ZHONG Shi-jun, WANG Wei, WANG Yan, MA Liang. Anormalies of b-value Changes before M≥4.0 Earthquake in Tangshan Old Seismic Region [J]. EARTHQUAKE, 2024, 44(1): 94-108.
[2]	ZENG Xian-wei, LONG Feng, REN Jia-qi, CAI Xin-hua, LI Wen-jun. Spatial and Temporal Variation of b value before and after the Changning M_S6.0 Earthquake on June 17, 2019 [J]. EARTHQUAKE, 2020, 40(3): 1-14.
[3]	ZHANG Shuang-feng, ZHANG Xiao-tao, ZHANG Li-xiao. Study on Strong Earthquake Background in the Junction Area of Shanxi, Hebei, Shandong and Henan Based on b Value [J]. EARTHQUAKE, 2020, 40(2): 130-139.
[4]	XUE Yan, JIANG Xiang-hua, LIU Gui-ping. Active State and Trend on Strong Earthquakes in North China [J]. EARTHQUAKE, 2020, 40(2): 1-17.
[5]	YIN Xiao-fei, ZHANG Guo-min, SHAO Zhi-gang, WANG Peng, SUN Xin-zhe. Research on Activity Characteristics of Strong Earthquakes in North China [J]. EARTHQUAKE, 2020, 40(1): 11-33.
[6]	WU Peng, JIA Hua, ZHANG Xiao-tao, WANG Xue-fei, LIU Shuang. Characteristics of Crustal Thickness and Velocity Ratio atthe Junction of Shanxi, Hebei and Inner Mongolia [J]. EARTHQUAKE, 2019, 39(4): 63-75.
[7]	WANG Xia, SONG Mei-qin, CHEN Hui. Statistical Analysis of Seismic Gap in North China [J]. EARTHQUAKE, 2019, 39(3): 187-195.
[8]	YANG Yan-Ming, CHEN Jing, XIONG Feng, ZHANG Yun, MA Yuan, JIA Xin-Ye, JIA Yan-jie. Distribution of Crustal Thickness and Poisson's Ratio beneath the Northern Margin of the Western Part of North China Craton and Adjacent Areas [J]. EARTHQUAKE, 2019, 39(2): 97-109.
[9]	SHEN Jin-chao, LI Shi-cheng, ZHANG Bin. Variation of b Value with Depth in the Changdao Earthquake Sequence [J]. EARTHQUAKE, 2019, 39(2): 28-36.
[10]	YANG Feng. Double-difference Seismic Tomography of 3D P-wave Velocity Crustal Structure under the Northern Part of North China [J]. EARTHQUAKE, 2019, 39(1): 58-71.
[11]	LU Guo-jun, ZHANG He, LI Hao, WANG Jian-long. Infrared Brightness Temperature Changes before Moderate to Strong Earthquakes in North China [J]. EARTHQUAKE, 2018, 38(1): 96-106.
[12]	YANG Wen,LONG Hai-yun,YAO Qi. Seismicity and Relocation of the July 3, 2015 Pishan M_S6.5 Earthquake Sequence [J]. EARTHQUAKE, 2017, 37(1): 166-174.
[13]	XU Wei-min, SUN Shao-bo, LI Xiao-yi, LU Hong-yan, ZHENG Qiu-yue. Calculation of Gravity Variations in North China based on Kriging Gridding with Variogram Approach [J]. EARTHQUAKE, 2016, 36(4): 171-185.
[14]	LIU Fang, ZHU Yi-qing, LIANG Wei-feng, YANG Jiao, ZHAO Yun-feng. Estimation of Equivalent Source Parameters of Gravity Changes in North China based on Euler Deconvolution Method [J]. EARTHQUAKE, 2016, 36(4): 163-170.
[15]	CAO Jian-ling, JIA Xiao-dong, LI La-yue, CHANG Liu. A Review of Precursory Anomalies of Cross-fault Observation in North China [J]. EARTHQUAKE, 2016, 36(4): 61-75.

Reliability of time-space scanning results of b value and correlativity between b vales and earthquakes with M≥5.0 in North China

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments