气候变化领域集成服务门户(CCPortal): A Machine-Learning Approach for Earthquake Magnitude Estimation

CCPortal

DOI	10.1029/2019GL085976
	A Machine-Learning Approach for Earthquake Magnitude Estimation
	Mousavi S.M.; Beroza G.C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	In this study, we present a fast and reliable method for end-to-end estimation of earthquake magnitude from raw waveforms recorded at single stations. We design a regressor (MagNet) composed of convolutional and recurrent neural networks that is not sensitive to the data normalization, hence waveform amplitude information can be utilized during the training. The network can learn distance-dependent and site-dependent functions directly from the training data. Our model can predict local magnitudes with an average error close to zero and standard deviation of ~0.2 based on single-station waveforms without instrument response correction. We test the network for both local and duration magnitude scales and show a station-based learning can be an effective approach for improving the performance. The proposed approach has a variety of potential applications from routine earthquake monitoring to early warning systems. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Deep learning; Learning systems; Machine learning; Recurrent neural networks; Early Warning System; Earthquake magnitudes; Earthquake monitoring; Machine learning approaches; magnitude; Response corrections; single-station; Source characterization; Earthquakes; amplitude; artificial neural network; design method; earthquake magnitude; information management; seismometry; waveform analysis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170895
作者单位	Geophysics Department, Stanford University, Stanford, CA, United States
推荐引用方式 GB/T 7714	Mousavi S.M.,Beroza G.C.. A Machine-Learning Approach for Earthquake Magnitude Estimation[J],2020,47(1).
APA	Mousavi S.M.,&Beroza G.C..(2020).A Machine-Learning Approach for Earthquake Magnitude Estimation.Geophysical Research Letters,47(1).
MLA	Mousavi S.M.,et al."A Machine-Learning Approach for Earthquake Magnitude Estimation".Geophysical Research Letters 47.1(2020).