AIRES智能实时地震处理系统在稀疏台网下的应用:以2025年定日地震为例
夏登科 , 房立华 , 蒋策 , 范莉苹 , 李君 , 吕帅 , 李帅 , 索朗占堆
地球科学 ›› 2026, Vol. 51 ›› Issue (01) : 1 -13.
AIRES智能实时地震处理系统在稀疏台网下的应用:以2025年定日地震为例
Application of Artificial Intelligence Real⁃Time Earthquake Processing System (AIRES) under a Sparse Seismic Network: A Case Study of 2025 Dingri Earthquake
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2025年1月7日西藏定日发生MW7.1地震,造成严重人员伤亡.利用定日地震周边12个固定台站与震后布设的6个流动台站数据,应用AIRES(Artificial Intelligence Real⁃time Earthquake processing System)智能实时地震处理系统对余震序列进行处理,评估AIRES在稀疏台网下的应用效果.AIRES基于深度学习算法,自动从实时波形中完成地震检测、震相到时拾取、事件关联及震源参数反演.与人工目录对比表明,AIRES检测余震11 242次,是人工目录的2.53倍,完备震级降至ML1.5;两个目录的平均震中差异为4.69 km、平均震源深度差异为5.71 km、平均震级差为-0.02.定日地震的余震分布在南北向长度约80 km,东西向宽度约30 km的区域内,并具有明显的分段和拐折特征.研究表明,在台网稀疏场景下,AIRES仍能保持稳健的检测能力与定位精度,可为密集地震序列实时监测和地震应急提供技术支撑.
On January 7, 2025, an MW7.1 earthquake struck Dingri, Xizang, causing severe casualties. This study employs data from 12 permanent and 6 temporary seismic stations deployed around the epicentral area to process the aftershock sequence using the AIRES (Artificial Intelligence Real-time Earthquake processing System). The goal is to evaluate the performance of AIRES under a sparse seismic network configuration. AIRES, based on deep learning algorithms, automatically conducts earthquake detection, phase picking, event association, and source parameter inversion from real-time waveforms. Comparison with the manual catalog demonstrates that AIRES detected 11 242 aftershocks, which is 2.53 times the size of the manual catalog, effectively lowering the magnitude of completeness to ML1.5. The average differences between the two catalogs are 4.69 km in epicenter, 5.71 km in focal depth, and -0.02 in local magnitude. The aftershocks are distributed in a north- south-trending zone approximately 80 km long and 30 km wide, exhibiting distinct segmentation and bending features. The study demonstrates that AIRES maintains robust detection capability and location accuracy even under sparse network conditions, providing strong technical support for real-time monitoring of dense aftershock sequences and earthquake emergency response.
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国家自然科学基金项目(42374081)
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