地球与行星物理论评（中英文）2025，Vol.56Issue(3)：338-351,14.DOI:10.19975/j.dqyxx.2024-046
基于安徽合肥MS4.7地震快速估计本地区MS6.0设定地震加速度时程及其破坏能力
Rapid estimation of MS6.0 scenario earthquake acceleration waveform and its destructive capacity in local area based on the MS4.7 earthquake in Anhui Province
摘要
Abstract
On September 18,2024,the MS4.7 earthquake occurred in Hefei,Anhui Province,causing certain building damage and social panic.This was the largest earthquake of magnitude to occur in the Hefei area in 2024.In today's highly developed self-media,the social attention caused by minor destructive earthquakes in the eastern coastal regions remains high,especially the earthquake in the southern section of the Tanlu earthquake zone,where several small earthquakes of around MS3.0 have occurred recently.If the magnitude of this earthquake is not MS4.7 but MS6.0,what will happen?With the significant improvement of China's earthquake monitoring capabilities,the waveform data of this earthquake can be recorded relatively completely.The empirical Green's function method can use small earthquake waveforms as Green's functions to synthesize the seismic motion of large earthquakes,and this MS4.7 earthquake happens to meet the criteria for selecting small earthquakes as Green's functions in this meth-od.This article intends to use the MS4.7 earthquake as Green's function and the empirical Green's function method as the simulation tool to quickly estimate the acceleration waveform of a set MS6.0 earthquake at seven stations in the Hefei area from the perspective of earthquake emergency and analyze the seismic damage response and de-structive capacity of this set earthquake in a determined building model.The results indicate that if the magnitude of this earthquake is MS6.0,it will demonstrate strong destructive power in the Feidong area,with PGA values ran-ging from 0.25-0.6 g within a distance of 30 km from the epicenter.There is a risk of serious damage to the build-ing,especially for old and high-rise buildings in the area.This study attempts to estimate the characteristics of strong earthquake ground motion and analyze building damage from the perspective of earthquake emergency re-sponse.The relevant results can also provide a reference for local seismic design and earthquake emergency products.关键词
安徽地震/格林函数/地震应急/设定地震/破坏能力估计Key words
Anhui earthquake/Green's function/earthquake emergency response/scenario earthquake/estima-tion of destructive capacity分类
天文与地球科学引用本文复制引用
李宗超,纪志伟,孙吉泽,陈鲲,谢俊举..基于安徽合肥MS4.7地震快速估计本地区MS6.0设定地震加速度时程及其破坏能力[J].地球与行星物理论评（中英文）,2025,56(3):338-351,14.基金项目
国家自然科学基金青年基金资助项目(42104053) （42104053）
中国地震局地球物理研究所基本科研业务专项资助项目(DQJB24X22,DQJB22R30)Supported by the National Natural Science Foundation for Young Scientists of China(Grant No.42104053),and the Research Project Fund of the Institute of Geophysics,China Earthquake Administration(Grant Nos.DQJB24X22,DQJB22R30) （DQJB24X22,DQJB22R30）
