Toward tectonic‐type and global 1D seismic models of the upper mantle constrained by broadband surface waves

C Civiero, S Lebedev, Y Xu… - Bulletin of the …, 2024 - pubs.geoscienceworld.org
The unprecedentedly dense current sampling of the upper mantle with seismic data offers
an opportunity for determining representative seismic velocity models for the Earth's main …

Rayleigh wave attenuation and amplification measured at ocean‐bottom seismometer arrays using Helmholtz tomography

JB Russell, CA Dalton - Journal of Geophysical Research: Solid …, 2022 - Wiley Online Library
Shear attenuation provides insights into the physical and chemical state of the upper mantle.
Yet, observations of attenuation are infrequent in the oceans, despite recent proliferation of …

Seismic azimuthal anisotropy within the Juan de Fuca‐Gorda plate system

C Liu, T Becker, M Wu, S Han… - Geophysical Research …, 2024 - Wiley Online Library
We estimate seismic azimuthal anisotropy for the Juan de Fuca‐Gorda plates from inversion
of a new 10–80 s period Rayleigh wave dataset, resulting in a two‐layer model to 80 km …

Characterizing Lithospheric Transverse Isotropy Using Moment Tensors—On the Origin of the Non–Double‐Couple Components of Global CMT Solutions

H Kawakatsu - Bulletin of the Seismological Society of …, 2024 - pubs.geoscienceworld.org
The seismic moment tensor, which represents the equivalent body‐force system of the
seismic source, may exhibit non–double‐couple components (NDCs) when the earthquake …

Pacific seafloor in the 40–52 Myr old portion of the Molokai to Murray corridor

DK Blackman, S Talavera-Soza, RJ Hung, JA Collins… - Marine Geology, 2024 - Elsevier
A detailed study of the character of 40–52 Myr old Northeast Pacific seafloor illustrates how
volcanism that occurs outside a spreading center axial zone contributes to the morphology …

Olivine Fabrics in the Oceanic Lithosphere Constrained by Pn Azimuthal Anisotropy

N Takeuchi, T Isse, H Kawakatsu… - Journal of …, 2023 - Wiley Online Library
We constrain olivine fabrics in the oceanic lithosphere using active and passive seismic
observations of Pn azimuthal anisotropy. We first analyze active‐source data derived from a …