Results 91 to 100 of about 32,197 (269)

Hamilton's principle and normal mode coupling in an aspherical planet with a fluid core [PDF]

, 2018
We apply Hamilton's principle to obtain the exact equations of motion for an elastic planet that is rotating, self-gravitating and comprises both fluid and solid regions.
David Al-Attar, Valentine, Andrew, Trampert, J., Valentine, Andrew P., Al-Attar, David, Crawford, O., Trampert, Jeannot, Valentine, A.P., Seismology, Al-Attar, D., Crawford, Ophelia, Andrew P Valentine, Ophelia Crawford, Jeannot Trampert   +13 more
core   +3 more sources

Earthquake Seismogram Denoising Across Time, Time‐Frequency, and Hybrid Domain Approaches

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Deep learning earthquake signal denoisers commonly operate directly on waveform data or on time‐frequency representations, yet the impact of this design choice has not been systematically assessed under controlled conditions. Here we design and benchmark four comparable deep learning architectures to assess the effect of input data ...
Nikolaj L. Dahmen
wiley   +1 more source

Identification of expected seismic activity areas by forecasting complex seismic-mode parameters in Uzbekistan

Geodesy and Geodynamics, 2018
In this paper, the author proposed a methodology to reveal expected seismic activation places for coming years by a complex of forecasting parameters of a seismic mode.
T.U. Artikov, R.S. Ibragimov, T.L. Ibragimova, M.A. Mirzaev   +3 more
doaj   +1 more source

AdriaArray – a Passive Seismic Experiment to Study Structure, Geodynamics and Geohazards of the Adriatic Plate

AdriaArray is a multinational initiative to cover the Adriatic Plate and its tectonically active surroundings – including units of Adriatic origin – with a dense regional array of seismic stations.
Kolínský, Petr, the AdriaArray Seismology Group, Tiira, Timo Ensio   +2 more
core   +1 more source

IGyTheM: Integrating Geodynamics With Thermodynamics Using Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Achieving a comprehensive understanding of mantle convection requires integrated models that couple mantle dynamics with thermodynamic properties. Although advances in computational geodynamics have substantially improved our ability to simulate the underlying physical processes, incorporating thermodynamics into self‐consistent geodynamic ...
Qian Yuan, Paul D. Asimow, Michael Gurnis, Paula Antoshechkina, Junjie Dong   +4 more
wiley   +1 more source

Vertical gravity gradient modeling and its influence on gravity datum transfer

Geodesy and Geodynamics
In the past, the free-air gradient −308.6 × 10−8 s−2 was used as the vertical gravity gradient of the measuring point in gravity data processing, which resulted in inaccurate instrument height corrections.
Tianxiang Zhou, Hongbo Tan, Guangliang Yang, Rugang Xu, Xinlin Zhang, Jiapei Wang, Sheng Liu, Hengzhou Meng, Ziheng Chen   +8 more
doaj   +1 more source

Adapting a Pretrained LLM to Rapidly Recover Earthquake Magnitude and Location

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Determining earthquake magnitude and location through fast, automated methods is fundamental for seismic monitoring. Recent studies have shown that Large Language Models (LLMs) can operate as pattern‐recognition systems capable of handling novel domains and purely numerical tasks.
Aurora Bassani, Daniele Trappolini, Giulio Poggiali, Elisa Tinti, Fabio Galasso, Alberto Michelini, Chris Marone   +6 more
wiley   +1 more source

Frequency dependent attenuation of seismic waves for Delhi and surrounding area, India

Annals of Geophysics, 2015
The attenuation properties of Delhi & surrounding region have been investigated using 62 local earthquakes recorded at nine stations. The frequency dependent quality factors Qa (using P-waves) and Qb (using S-waves) have been determined using the ...
Babita Sharma, Prasantha Chingtham, Anup K. Sutar, Sumer Chopra, Haldhar P. Shukla   +4 more
doaj   +1 more source

Quantifying the Role of 3D Fault Geometry Complexities on Slow and Fast Earthquakes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Traditional models of slow slip events (SSEs) oversimplify fault geometry, although imaging shows subduction faults are segmented and complex. We examine how fault interactions control slip behavior using 3D quasi‐dynamic simulations of two parallel faults with uniform rate‐weakening friction accelerated by hierarchical matrices.
J. Cheng, H. S. Bhat, M. Almakari, B. Lecampion, P. Dubernet   +4 more
wiley   +1 more source

Building damages in Deyang city by the 2008 Wenchuan earthquake

Geodesy and Geodynamics, 2011
The Ms8.0 Wenchuan earthquake in 2008 caused huge casualties, economic losses, and building damages, which are analyzed. The results show that damages of houses designed according to the current seismic code were significantly smaller than those without ...
Wang Qiuliang, Li Jinggang, Liao Wulin, Zhang Lifen, Qin Xiaojun   +4 more
doaj   +1 more source