Continuous prediction method of earthquake early warning magnitude for high-speed railway based on support vector machine [PDF]
Railway Sciences, 2022 Purpose – Using the strong motion data of K-net in Japan, the continuous magnitude prediction method based on support vector machine (SVM) was studied. Design/methodology/approach – In the range of 0.5–10.0 s after the P-wave arrival, the prediction time
Jindong Song, Jingbao Zhu, Shanyou Li
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An Evolutionary Shaking‐Forecast‐Based Earthquake Early Warning Method
Earth and Space Science, 2023 Here we propose a methodology for Earthquake Early Warning (EEW) able to issue the alert based on the real‐time estimation of the epicentral area where a peak ground Intensity measure is expected to exceed a user‐set ground shaking level.
Aldo Zollo +3 more
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Numerical study of double-chambered perforated caisson with a top cover based on SPH method
Frontiers in Marine Science, 2023 The Smoothed Particle Hydrodynamics (SPH) method modified by Corrective Smoothed Particle Method (CSPM) and Riemann solution is employed to simulate the interaction between double-chambered perforated caissons and waves. The accuracy and applicability of
Xiaocheng Tang +5 more
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P Wave Arrival Picking and First‐Motion Polarity Determination With Deep Learning [PDF]
Journal of Geophysical Research: Solid Earth, 2018 AbstractDetermining earthquake hypocenters and focal mechanisms requires precisely measured P wave arrival times and first‐motion polarities. Automated algorithms for estimating these quantities have been less accurate than estimates by human experts, which are problematic for processing large data volumes.
Zachary E. Ross +2 more
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PolarCAP – A deep learning approach for first motion polarity classification of earthquake waveforms
Artificial Intelligence in Geosciences, 2022 The polarity of first P-wave arrivals plays a significant role in the effective determination of focal mechanisms specially for smaller earthquakes. Manual estimation of polarities is not only time-consuming but also prone to human errors.
Megha Chakraborty +6 more
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A Generic Shear Wave Velocity Profiling Model for Use in Ground Motion Simulation
Geosciences, 2020 This study presents a generic model for constructing shear-wave velocity (VS) profiles for various conditions that can be used for modeling the upper-crustal modification effects in ground motion simulations for seismic hazard analysis.
Yuxiang Tang +3 more
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The Seismic Record, 2022 Focal mechanisms, which reflect the sense of slip in earthquakes, provide important constraints for understanding crustal tectonics and earthquake source physics, including the interactions among earthquakes during mainshock–aftershock sequences or ...
David R. Shelly +2 more
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Response of the International Energy Agency (IEA) Wind 15 MW WindCrete and Activefloat floating wind turbines to wind and second-order waves [PDF]
Wind Energy Science, 2021 The EU Horizon 2020 project COREWIND (COst REduction and increase performance of floating WIND technology) has developed two floating platforms for the new International Energy Agency (IEA) Wind 15 MW reference wind turbine. One design – “WindCrete” – is
M. Y. Mahfouz +7 more
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Mechanism of High Frequency Shallow Earthquake Source in Mount Soputan, North Sulawesi
Indonesian Journal on Geoscience, 2014 DOI: 10.17014/ijog.v6i3.122Moment tensor analysis had been conducted to understand the source mechanism of earthquakes in Soputan Volcano during October - November 2010 period. The record shows shallow earthquakes with frequency about 5 - 9 Hz.
Yasa Suparman +2 more
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An effective method for laboratory acoustic emission detection and location using template matching
Journal of Rock Mechanics and Geotechnical Engineering, 2022 In this paper, a template matching and location method, which has been rapidly adopted in microseismic research in recent years, is applied to laboratory acoustic emission (AE) monitoring. First, we used traditional methods to detect P-wave first motions
Xinglin Lei +4 more
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