Subslab heterogeneity and giant megathrust earthquakes

J Fan, D Zhao - Nature Geoscience, 2021 - nature.com
The nucleation and rupture processes of giant megathrust earthquakes (M≥ 9.0) in
subduction zones are still controversial. Most previous studies have focused on the …

Sub‐slab anisotropy beneath the Sumatra and circum‐Pacific subduction zones from source‐side shear wave splitting observations

C Lynner, MD Long - Geochemistry, Geophysics, Geosystems, 2014 - Wiley Online Library
Understanding the dynamics of subduction is critical to our overall understanding of plate
tectonics and the solid Earth system. Observations of seismic anisotropy can yield …

Seismic slip on an upper-plate normal fault during a large subduction megathrust rupture

SP Hicks, A Rietbrock - Nature Geoscience, 2015 - nature.com
Quantification of stress accumulation and release during subduction zone seismic cycles
requires an understanding of the distribution of fault slip during earthquakes …

Three-dimensional electrical conductivity in the mantle beneath the Payún Matrú Volcanic Field in the Andean backarc of Argentina near 36.5 S: Evidence for …

AI Burd, JR Booker, R Mackie, A Favetto… - Geophysical Journal …, 2014 - academic.oup.com
Abstract Southern Mendoza and northern Neuquén Provinces, south of the Pampean
Shallow Subduction region in western Argentina, are host to the< 2 Myr Payunia Basaltic …

Complex anisotropy beneath the Peruvian flat slab from frequency‐dependent, multiple‐phase shear wave splitting analysis

CM Eakin, MD Long - Journal of Geophysical Research: Solid …, 2013 - Wiley Online Library
Flat or shallow subduction is a relatively widespread global occurrence, but the dynamics
remain poorly understood. In particular, the interaction between flat slabs and the …

Seismic anisotropy beneath the Pamir and the Hindu Kush: Evidence for contributions from crust, mantle lithosphere, and asthenosphere

SK Kufner, T Eken, F Tilmann, B Schurr… - Journal of …, 2018 - Wiley Online Library
We use local and teleseismic earthquakes to analyze shear wave splitting within the Pamir‐
Hindu Kush region, north of the western syntaxis of the India‐Asia collision zone. These two …

Mantle dynamics of the Andean Subduction Zone from continent-scale teleseismic S-wave tomography

EE Rodríguez, DE Portner, SL Beck… - Geophysical Journal …, 2021 - academic.oup.com
SUMMARY The Andean Subduction Zone is one of the longest continuous subduction
zones on Earth. The relative simplicity of the two-plate system has makes it an ideal natural …

P Wave Azimuthal Anisotropic Tomography in Northern Chile: Insight Into Deformation in the Subduction Zone

Z Huang, F Tilmann, D Comte… - Journal of geophysical …, 2019 - Wiley Online Library
Based on a large data set of local body wave travel times, we determined the first 3‐D model
of azimuthal P wave anisotropic tomography of northern Chile in order to study the …

Pronounced zonation of seismic anisotropy in the Western Hellenic subduction zone and its geodynamic significance

JA Olive, F Pearce, S Rondenay, MD Behn - Earth and Planetary Science …, 2014 - Elsevier
Many subduction zones exhibit significant retrograde motion of their arc and trench. The
observation of fast shear-wave velocities parallel to the trench in such settings has been …

Seismic anisotropy in the Sumatra subduction zone

R Collings, A Rietbrock, D Lange… - Journal of …, 2013 - Wiley Online Library
An important tool for understanding deformation occurring within a subduction zone is the
measurement of seismic anisotropy through observations of shear wave splitting (SWS). In …