Results 151 to 160 of about 95,361 (334)
State-of-the-art of the historical seismology in Colombia
Annals of Geophysics, 2004 In Colombia are available a discreet number of historical seismology investigations, dating back 50 years. This paper reviews basic information about earthquakes studies in Colombia, such as primary sources, compilation of descriptive catalogues and ...
E. J. Salcedo Hurtado +2 more
doaj +1 more source
Some Seismological Evidence That Is Not Evident [PDF]
, 1922 James B. Macelwane
openalex +1 more source
Longitudinal oscillations in density stratified and expanding solar waveguides
, 2012 Waves and oscillations can provide vital information about the internal structure of waveguides they propagate in. Here, we analytically investigate the effects of density and magnetic stratification on linear longitudinal magnetohydrodynamic (MHD) waves.
Andries +22 more
core +1 more source
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.Abstract Deep‐focus earthquakes and their association with metastable olivine wedges (MOWs) remain enigmatic. Here we perform a seismic‐geodynamic analysis of the Pacific slab stagnant at the 660 km deep bottom of the mantle transition zone. All investigated deep earthquakes exhibit only minor (mostly implosive) isotropic components, yet exhibit ...
Junqing Liu +5 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.Abstract The influence of geological and structural heterogeneity on the megathrust slip behavior in subduction zones has been widely discussed for both the lower‐ and upper‐plates. In this work, we present OBS local earthquake tomography on the outer forearc domain of the SW Hellenic subduction zone performed with the aftershocks of the 2008 Mw 6.8 ...
M. Sachpazi +6 more
wiley +1 more source
Modelling Fast-Alfv\'en Mode Conversion Using SPARC
, 2013 We successfully utilise the SPARC code to model fast-Alfv\'en mode conversion in the region $c_A \gg c_S$ via 3-D MHD numerical simulations of helioseismic waves within constant inclined magnetic field configurations.
Cally, P S, Moradi, H
core +1 more source
Self‐Supervised Coherence‐Based Denoising of Cryoseismological Distributed Acoustic Sensing Data
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.Abstract A major challenge in cryoseismology is that signals of interest are often buried within the high noise level emitted by a variety of environmental processes. Particular Distributed Acoustic Sensing (DAS) data often suffers from low signal‐to‐noise ratios (SNR) potentially resulting in a multitude of undetected events of interest, which further
Johanna Zitt +4 more
wiley +1 more source
Examining the Quantification Capability of Automated Mineralogy System: A Machine Learning Approach
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.Abstract Automated mineralogy (AM) systems are a novel platform for material characterization. By analyzing the X‐rays generated from sample–electron interactions, these systems can rapidly and automatically provide mineralogical and textural descriptions of a sample.
Ao Su +4 more
wiley +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.Abstract Characterization of induced microseismicity at a carbon dioxide (CO2 ${\text{CO}}_{2}$) storage site is critical for preserving reservoir integrity and mitigating seismic hazards. We apply a multilevel machine learning (ML) approach that combines the nonnegative matrix factorization and hidden Markov model to extract spectral representations ...
Rachel M. Willis +5 more
wiley +1 more source