成都理工大学学报（自然科学版）2026，Vol.53Issue(1)：64-77,14.DOI:10.12474/cdlgzrkx.2025031202
基于地震记录的2025年2月8日四川省宜宾市筠连县山体滑坡运动过程分析
Analysis of landslide movement in Junlian County,Yibin City,Sichuan Province on February 8,2025,based on seismic records
摘要
Abstract
At approximately 11:50 a.m.Beijing time on February 8,2025,a sudden landslide occurred in Gaojiaping,Jinping Village,Mu'ai Township,Junlian County,Yibin City,Sichuan Province,resulting in severe casualties and property damage.To investigate the dynamics of the landslide,we analyzed the associated seismic records.The seismic signals generated by the landslide were clearly recorded at five nearby seismic stations,exhibiting two distinct impulsive phases that stood out from the background noise.The total duration of the seismic signal was 99 s,with frequency content ranging from 0.1 Hz to 10.0 Hz.A detailed analysis was conducted in conjunction with geological conditions and the landslide's path,leading to the following conclusions:(1)Based on the seismic signal characteristics and the spatial distribution of seismic stations,two primary sliding phases were identified,and their respective onset times and durations were determined.(2)Considering the generation mechanisms of long-and short-period seismic signals and frequency-dependent signal characteristics under topographical constraints,the first sliding phase was further subdivided into four stages,while the second phase was classified into three broader stages.This study provides scientific insights into the disaster-causing process of the Gaojiaping landslide and offers valuable references for future landslide hazard mitigation efforts.关键词
筠连县高家坪滑坡/地震台网/信号特征/运动过程分析Key words
Gaojiaping landslide in Junlian County/seismic network/signal characteristics/motion process analysis分类
天文与地球科学引用本文复制引用
蒲枫,许强,蒲川豪,董秀军,苏金蓉,郭朋瑜,邓博,李志刚..基于地震记录的2025年2月8日四川省宜宾市筠连县山体滑坡运动过程分析[J].成都理工大学学报（自然科学版）,2026,53(1):64-77,14.基金项目
国家重点研发计划(2022YFC3003205,2022YFC3003201). （2022YFC3003205,2022YFC3003201）
