Calculation of the h-value during Superposing of Strong Earthquake Sequences and Its Application in Earthquake Prediction
Calculation of the h-value during Superposing of Strong Earthquake Sequences and Its Application in Earthquake Prediction出 版 物：《Earthquake Research in China》 (中国地震研究（英文版）)
年 卷 期：1999年第13卷第3期
页 面：38-48页
学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学]
基 金：This project was sponsored by the Earthquake Science Foundation of Xinjiang (9701) China
主 题：Earthquake swarm Sequence analysis earthquake frequency aftershock frequency attenuation h-value Jiashi.
摘 要：For a strong earthquake swarm, the key to estimate the frequency attenuation coefficient h-value of ensuing strong earthquake sequence accurately lies in quantitative calculation and subtraction of the foreshock sequence *** the Jiashi strong earthquake swarm sequence as an example, we analyzed and compared the h-values when foreshock effect has been subtracted or not subtracted. The result shows that the boundary between the two great difference is the M56.6 earthquake on April 11,1997. The h-values with foreshock effect subtracted are all Iess than 1 before the moderately strong earthquakes, but after the earthquake, the h-values are all greater than 1. On the contrary, the h-values with foreshock effect do not show this kind of turning *** test results shows that quantitatively subtracting foreshock effect is beneficial to the judgement of the trend of the activity of the Jiashi strong earthquake swarm. This provides the basis for accurately grasping sequence development
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