Interplate coupling and seismic potential in the Atacama Seismic Gap (Chile): Dismissing a rigid Andean sliver

V Yáñez‐Cuadra, F Ortega‐Culaciati… - Geophysical …, 2022 - Wiley Online Library
Geodetically constrained interseismic interplate coupling has been widely used to assess
seismic potential in subduction zones. Modeling interseismic deformation is challenging, as …

Plate‐Locking, Uncertainty Estimation and Spatial Correlations Revealed With a Bayesian Model Selection Method: Application to the Central Chile Subduction Zone

V Becerra‐Carreño, JGF Crempien… - Journal of …, 2022 - Wiley Online Library
Inversions of geodetic data are regularly used to estimate interseismic locking in subduction
zones. However, the ill‐posed nature of these problems motivates us to include prior …

Accuracy of finite fault slip estimates in subduction zone regions with topographic Green's functions and seafloor geodesy

L Langer, T Ragon - Journal of Geophysical Research: Solid …, 2023 - Wiley Online Library
Until recently, the lack of seafloor geodetic instrumentation and the use of unrealistically
simple, half‐space based forward models have resulted in poor resolution of near‐trench …

Fast relocking and afterslip-seismicity evolution following the 2015 Mw 8.3 Illapel earthquake in Chile

J Hormazábal, M Moreno, F Ortega-Culaciati… - Scientific Reports, 2023 - nature.com
Large subduction earthquakes induce complex postseismic deformation, primarily driven by
afterslip and viscoelastic relaxation, in addition to interplate relocking processes. However …

Relation between oceanic plate structure, patterns of interplate locking and microseismicity in the 1922 Atacama seismic gap

D González‐Vidal, M Moreno, C Sippl… - Geophysical …, 2023 - Wiley Online Library
We deployed a dense geodetic and seismological network in the Atacama seismic gap in
Chile. We derive a microseismicity catalog of> 30,000 events, time series from 70 GNSS …

[HTML][HTML] Mosaicking Andean morphostructure and seismic cycle crustal deformation patterns using GNSS velocities and machine learning

V Yáñez-Cuadra, M Moreno… - Frontiers in Earth …, 2023 - frontiersin.org
We use unsupervised machine learning techniques to analyze continental-scale crustal
motions in areas affected by the seismic cycle of large subduction earthquakes along the …

Coseismic shallow slip deficit accounted for by diffuse off‐fault deformation

SL Antoine, Y Klinger, K Wang… - Geophysical Research …, 2024 - Wiley Online Library
Earthquake ruptures produce fault slip and kilometer‐wide diffuse deformation of the host
rocks. However, the origin of the diffuse deformation and its role in the rupture process are …

A Secondary Zone of Uplift Measured After Megathrust Earthquakes: Caused by Early Downdip Afterslip?

T Ragon, M Simons - Geophysical Research Letters, 2023 - Wiley Online Library
A secondary zone of surface uplift (SZU), located from 200 to 400 km landward of the trench,
has been measured after several megathrust earthquakes. The SZU reached a few …

A supervised machine learning approach for estimating plate interface locking: Application to Central Chile

S Barra, M Moreno, F Ortega-Culaciati… - Physics of the Earth and …, 2024 - Elsevier
Estimating locking degree at faults is important for determining the spatial distribution of slip
deficit at seismic gaps. Inverse methods of varying complexity are commonly used to …

Detection of a recent large Hyuga-nada long-term slow slip event and estimation of its spatiotemporal slip distributions

H Kawabata, Y Seshimo, S Yoshioka… - Progress in Earth and …, 2024 - Springer
Using horizontal and vertical GNSS time series data from the GSI in sotheastern Kyushu
from January 1, 2017 to June 30, 2022, we detected a recent long-term slow slip event (L …