Updip Fluid Flow in the Crust of the Northeastern Noto Peninsula, Japan, Triggered the 2023 Mw 6.2 Suzu Earthquake During Swarm Activity

K Yoshida, N Uchida, Y Matsumoto… - Geophysical …, 2023 - Wiley Online Library
An Mw 6.2 earthquake occurred in Suzu, northeastern Noto Peninsula, Japan, on 5 May
2023, followed by many aftershocks. Before this mainshock‐aftershock sequence, an …

Episodic transient deformation revealed by the analysis of multiple GNSS networks in the Noto Peninsula, central Japan

T Nishimura, Y Hiramatsu, Y Ohta - Scientific Reports, 2023 - nature.com
Abstract Since November 30, 2020, an intense seismic swarm and transient deformation
have been continuously observed in the Noto Peninsula, central Japan, which is a non …

Interaction between aseismic slip and fluid invasion in earthquake swarms revealed by dense geodetic and seismic observations

Y Yukutake, K Yoshida, R Honda - Journal of Geophysical …, 2022 - Wiley Online Library
Recent seismic and geodetic observations suggest the involvement of pressurized fluid and
aseismic slip during earthquake swarms. However, the interaction between these two factors …

Upward earthquake swarm migration in the northeastern Noto Peninsula, Japan, initiated from a deep ring‐shaped cluster: Possibility of fluid leakage from a hidden …

K Yoshida, M Uno, T Matsuzawa… - Journal of …, 2023 - Wiley Online Library
This study describes an ongoing intense earthquake swarm in the crust of the northeastern
Noto Peninsula, Japan, that began around the end of 2019. Fluid movement related to …

Hypocenter migration and seismicity pattern change in the Yamagata‐Fukushima border, NE Japan, caused by fluid movement and pore pressure variation

K Yoshida, A Hasegawa - Journal of Geophysical Research …, 2018 - Wiley Online Library
The spatiotemporal distributions of hypocenters and temporal change in seismicity patterns
were investigated in details for events in the Yamagata‐Fukushima border earthquake …

Temporal changes in stress drop, frictional strength, and earthquake size distribution in the 2011 Yamagata‐Fukushima, NE Japan, earthquake swarm, caused by …

K Yoshida, T Saito, Y Urata, Y Asano… - … Research: Solid Earth, 2017 - Wiley Online Library
In this study, we investigated temporal variations in stress drop and b‐value in the
earthquake swarm that occurred at the Yamagata‐Fukushima border, NE Japan, after the …

Slab-derived fluid storage in the crust elucidated by earthquake swarm

Y Mukuhira, M Uno, K Yoshida - Communications Earth & Environment, 2022 - nature.com
Slab-derived fluids control crustal dynamics in the subduction zone. However, the slab-
derived fluid budget has never been quantified beyond a geophysical and geological …

Heterogeneities in stress and strength in Tohoku and its relationship with earthquake sequences triggered by the 2011 M9 Tohoku-Oki earthquake

K Yoshida, A Hasegawa, T Yoshida… - Pure and Applied …, 2019 - Springer
Inland Tohoku has been recognized as under the WNW-ESE compressional stress state
before the 2011 M9 Tohoku-Oki earthquake. Earthquakes that occurred there were …

Seismic evidence of fluid migration in northeastern Japan after the 2011 Tohoku-Oki earthquake

QY Wang, M Campillo, F Brenguier, A Lecointre… - Earth and Planetary …, 2021 - Elsevier
We use ambient-noise-based seismic monitoring to detect an anomalous seismic velocity
decrease (∼ 0.01%) widely distributed in Honshu that arose about 1 year after the 2011 M w …

Deciphering the stress state of seismogenic faults in Oklahoma and southern Kansas based on an improved stress map

Y Qin, X Chen, JI Walter, J Haffener… - Journal of …, 2019 - Wiley Online Library
Fault location and geometry are critical considerations in the reactivation of preexisting
faults. Here, we combine relocated earthquake catalogs and focal mechanisms to delineate …