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Machine learned tasks on seismic data are often trained sequentially and separately, even though they utilize the same features (i.e. geometrical) of the data. We present StorSeismic, as a framework for seismic data processing, which…

机器学习 · 计算机科学 2022-12-07 Randy Harsuko , Tariq Alkhalifah

Inverse problems defined on the sphere arise in many fields, including seismology and cosmology where problems are defined on the globe and the cosmic sphere. These are generally high-dimensional and computationally very complex and, as a…

数据分析、统计与概率 · 物理学 2023-01-05 Augustin Marignier , Jason D. McEwen , Ana M. G. Ferreira , Thomas D. Kitching

Early earthquake warning is a rapidly developing capability that has significant ramifications for many fields, including astronomical observatories. In this work, we describe the susceptibility of astronomical facilities to seismic events,…

天体物理仪器与方法 · 物理学 2015-06-23 Michael Coughlin , Christopher Stubbs , Sergio Barrientos , Chuck Claver , Jan Harms , Christopher Smith , Michael Warner

Double difference earthquake relocation is an essential component of many earthquake catalog development workflows. This technique produces high-resolution relative relocations between events by minimizing differential measurements of the…

地球物理 · 物理学 2024-10-28 Ian W. McBrearty , Gregory C. Beroza

The new broadband seismic network in China will increase the number of stations from approximately 950 to 2000. The higher-resolution monitoring of the frequent smaller earthquakes expected inside Mainland China can be quantified via the…

地球物理 · 物理学 2024-04-25 Jiawei Li , Arnaud Mignan , Didier Sornette , Yu Feng

The local when earthquake prediction is based on the connection between geomagnetic quakes and the next incoming minimum or maximum of tidal gravitational potential. The probability time window for the predicted earthquake is for the tidal…

地球物理 · 物理学 2020-11-04 S. Cht. Mavrodiev

In the present paper we have conducted studies on seismological properties using worldwide data of deep earthquakes (depth larger than 70 km), considering events with magnitude $m \geq 4.5$. We have addressed the problem under the…

The ionosphere has been normally detected by traditional instruments, such as ionosonde, scatter radars, topside sounders onboard satellites and in situ rocket. However, most instruments are expensive and also restricted to either the…

空间物理 · 物理学 2016-11-17 Shuanggen Jin , Rui Jin

Seismic full-waveform inversion (FWI) uses full seismic records to estimate subsurface velocity structure. This requires a highly nonlinear and nonunique inverse problem to be solved, and Bayesian methods have been used to quantify…

地球物理 · 物理学 2021-04-13 Xin Zhang , Andrew Curtis

This paper proposes a neural network approach for solving two classical problems in the two-dimensional inverse wave scattering: far field pattern problem and seismic imaging. The mathematical problem of inverse wave scattering is to…

计算物理 · 物理学 2019-12-02 Yuwei Fan , Lexing Ying

A measure of the correlation between two earthquakes is used to link events to their aftershocks, generating a growing network structure. In this framework one can quantify whether an aftershock is close or far, from main shocks of all…

统计力学 · 物理学 2016-08-31 Marco Baiesi

We present a deep learning method for single-station earthquake location, which we approach as a regression problem using two separate Bayesian neural networks. We use a multi-task temporal-convolutional neural network to learn epicentral…

地球物理 · 物理学 2020-12-02 S. Mostafa Mousavi , Gregory C. Beroza

The May 2024 geomagnetic storm was one of the most severe in the past 20~years. Understanding how large geomagnetic disturbances (GMDs) impact geomagnetically induced currents (GICs) within electrical power grid networks is key to ensuring…

Since the beginning of this century, the significant advancements in artificial intelligence and neural networks have offered the potential to bring new transformations to short-term earthquake prediction research. However, currently, there…

地球物理 · 物理学 2025-07-23 Zhiyu Xu , Qingliang Chen

Extracting subsurface velocity information from seismic data is mainly an undetermined problem that requires injecting a priori information to constrain the inversion process. Machine learning has offered a platform to do so through the…

地球物理 · 物理学 2025-10-03 Xiao Ma , Shaowen Wang , Tariq Alkhalifah

Geomagnetic storms (GS) occur when solar winds disrupt Earth's magnetosphere. GS can cause severe damages to satellites, power grids, and communication infrastructures. Estimate of direct economic impacts of a large scale GS exceeds $40…

机器学习 · 计算机科学 2024-01-22 Iris Yan

The ETAS model is widely employed to model the spatio-temporal distribution of earthquakes, generally using spatially invariant parameters. We propose an efficient method for the estimation of spatially varying parameters, using the…

地球物理 · 物理学 2017-06-28 Shyam Nandan , Guy Ouillon , Stefan Wiemer , Didier Sornette

Investment in measuring a process more completely or accurately is only useful if these improvements can be utilised during modelling and inference. We consider how improvements to data quality over time can be incorporated when selecting a…

统计方法学 · 统计学 2021-02-02 Zak Varty , Jonathan A. Tawn , Peter M. Atkinson , Stijn Bierman

Iterative geostatistical seismic inversion integrates seismic and well data to infer the spatial distribution of subsurface elastic properties. These methods provide limited assessment to the spatial uncertainty of the inverted elastic…

地球物理 · 物理学 2018-10-18 Pedro Pereira , Fernando Bordignon , Leonardo Azevedo , Ruben Nunes , Amilcar Soares

Earthquakes cause lasting changes in static equilibrium, resulting in global deformation fields that can be observed. Consequently, deformation measurements such as those provided by satellite based InSAR monitoring can be used to infer an…

地球物理 · 物理学 2022-06-01 G. J. van Zwieten , E. H. van Brummelen , R. F. Hanssen