基于多模态深度学习的中国地震仪器烈度预测模型
A Chinese Seismic Instrument Intensity Prediction Model Based on Multimodal Deep Learning
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中国地震仪器烈度预测对我国地震预警和减灾至关重要,但传统方法存在精度不足、多源数据融合不充分等问题.本研究旨在构建一种多模态深度学习模型,探索在中国地区对于地震仪器烈度预测的可行性,提升地震预警中仪器烈度预测的准确性和鲁棒性.建立多模态中国仪器烈度预测网络(MCIINet),采用中国地震台网记录的地震事件对MCIINet进行训练和测试.实验表明:在测试数据集上,P波触发后3 s,和基线模型相比,MCIINet对于仪器烈度预测的MAE和RMSE分别降低了9.03%和8.67%、R2和准确率分别提升了9.10%和2.51%.MCIINet通过多模态深度特征融合有效提升了仪器烈度预测精度,验证了多模态深度学习对于我国地震仪器烈度预测的可行性,可为地震预警中仪器烈度预测提供技术支撑.
The Chinese seismic instrument intensity prediction is crucial for earthquake early warning (EEW) and hazard mitigation in China, but traditional methods suffer from issues such as insufficient accuracy and insufficient fusion of multi-source data. This study aims to construct a multimodal deep learning model, explore its feasibility for predicting seismic instrument intensity in China, and improve the accuracy and robustness of instrument intensity prediction for EEW. A Multimodal Chinese Instrument Intensity prediction Network (MCIINet) is proposed, which is trained and tested by the seismic events recorded by China Earthquake Networks Center. Experiments have shown that on the test dataset, compared to the baseline model at 3 s after P-wave triggering, MCIINet reduced MAE and RMSE of instrument intensity prediction by 9.03% and 8.67%, respectively, and improved R2 and accuracy by 9.10% and 2.51%, respectively. MCIINet has effectively improved the accuracy of intensity prediction through multimodal deep feature fusion, verifying the feasibility of multimodal deep learning for seismic instrument intensity prediction in China, and providing technical support for instrument intensity prediction in EEW.
附录见https://doi.org/10.3799/dqkx. 2025.078.
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国家重点研发计划项目(2024YFC3012803)
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