A review on slow earthquakes in the Japan Trench

T Nishikawa, S Ide, T Nishimura - Progress in Earth and Planetary Science, 2023 - Springer
Slow earthquakes are episodic slow fault slips. They form a fundamental component of
interplate deformation processes, along with fast, regular earthquakes. Recent …

Rapid shallow megathrust afterslip from the 2021 M8. 2 Chignik, Alaska earthquake revealed by seafloor geodesy

BA Brooks, D Goldberg, J DeSanto, TL Ericksen… - Science …, 2023 - science.org
The shallower portions of subduction zone megathrust faults host Earth's most hazardous
tsunamigenic earthquakes, yet understanding how and when they slip remains elusive …

Heterogeneous rheology of Japan subduction zone revealed by postseismic deformation of the 2011 Tohoku-oki earthquake

S Dhar, J Muto, Y Ohta, T Iinuma - Progress in Earth and Planetary Science, 2023 - Springer
The 2011 Tohoku-oki earthquake produced the most well-recorded postseismic deformation
of any megathrust earthquake in the world. Over the last decade, researchers have used a …

Estimating geodynamic model parameters from geodetic observations using a particle method

CP Marsman, FC Vossepoel… - Geophysical Journal …, 2024 - academic.oup.com
Bayesian-based data assimilation methods integrate observational data into geophysical
forward models to obtain the temporal evolution of an improved state vector, including its …

Experimental verification of seafloor crustal deformation observations by UAV-based GNSS-A

Y Yokota, M Kaneda, T Hashimoto, S Yamaura… - Scientific Reports, 2023 - nature.com
Abstract The Global Navigation Satellite System-Acoustic ranging combination technique
(GNSS-A) is the only geodetic observation method that can precisely detect absolute …

Temporal Change of km‐Scale Underwater Sound Speed Structure and GNSS‐A Positioning Accuracy

Y Yokota, S Watanabe, T Ishikawa… - Earth and Space …, 2022 - Wiley Online Library
Underwater disturbances are the largest error source in Global Navigation Satellite System‐
Acoustic ranging combination technique (GNSS‐A) seafloor geodetic observation. In …

A new mechanical perspective on a shallow megathrust near-trench slip from the high-resolution fault model of the 2011 Tohoku-Oki earthquake

T Kubota, T Saito, R Hino - Progress in Earth and Planetary Science, 2022 - Springer
Abstract The 2011 Tohoku-Oki earthquake generated a surprisingly large near-trench slip,
and earth scientists have devoted significant attention to understanding why. Some studies …

Progress in modeling the Tohoku-oki megathrust earthquake cycle and associated crustal deformation processes

B Shibazaki - Progress in Earth and Planetary Science, 2023 - Springer
This paper summarizes the results of 10 years of research on models of the megathrust
earthquake cycles and crustal deformation associated with the 2011 Tohoku-oki earthquake …

Full-Bayes GNSS-A solutions for precise seafloor positioning with single uniform sound speed gradient layer assumption

S Watanabe, T Ishikawa, Y Nakamura, Y Yokota - Journal of Geodesy, 2023 - Springer
A systematic analysis methodology for precise seafloor positioning using the GNSS-A has
been constructed and implemented in the open-source software GARPOS. It introduces a …

An approximate travel time calculation and a robust GNSS-acoustic positioning method using an MCMC technique

F Tomita, M Kido - Earth, Planets and Space, 2022 - Springer
It is important to consider horizontal heterogeneity in an underwater sound speed structure
to accurately estimate positions of GNSS-acoustic sites. Although large amounts of moving …