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Open access Aug 2026

Slip-Weakening and Rate-Strengthening Friction Law for Shallow Layer Above the Seismogenic Zone

Accurate modeling of slip-rate time functions in the shallow portion above the seismogenic zone on a fault is essential for ground-motion prediction. Recent observations, such as those from the 2016 Kumamoto, central Kyushu, Japan, earthquake (MJMA 7.3), have revealed long-period ground motions and permanent displace...

Y. Kase, K. Irie, Ken Miyakoshi et al. · 1 citation
Open access Jul 2026

Shear Fault Formation in Granite Under High and Transient Co‐Seismic Strain Rates Unveiled by Ultra‐Fast X‐Ray Imaging

During an earthquake a dynamic rupture propagates, causing fractures and permanent damage that modify the mechanical properties of the fault and its surroundings. Reciprocally, the energy dissipated by the mechanical transformation of the fault rock has a direct feedback on the dynamics of the seismic rupture. We repro...

A. Vishnu, M. Doan, J. Hollingsworth et al. · 0 citations
Open access Jul 2026

Spatial variation of stress drop in the offshore source area of the 2024 Noto Peninsula earthquake

The 2024 Noto Peninsula earthquake (M7.6), which occurred in central Japan on January 1, is thought to have ruptured multiple fault segments with different strike and dip angles. Seismicity along these segments remained active for over one year after the mainshock. To understand the fault zone in terms of fluid and fri...

Tsutomu Takahashi, Gou Fujie, M. Shinohara et al. · 0 citations
Open access Aug 2026

Coulomb-like creeping segment acts as a stress sensor in Northern Sumatra

Understanding how fault creep evolves in space and time is essential for identifying zones of aseismic stress release and stress accumulation. Creeping faults typically exhibit rate-strengthening friction, in which frictional resistance increases with sliding velocity and promotes stable slip. The northern Aceh segme...

Unknown authors · 0 citations
Open access Aug 2026

Kinematics and Dynamics of Normal Faults in Southern Tibet: Insights From the 2025 Mw 7.1 Dingri Earthquake

Normal faults in southern Tibet have long suffered from limited ground‐based seismic and geodetic observations, constraining our understanding of both interseismic and coseismic processes and their interactions. The 2025 Mw 7.1 Dingri earthquake provides an opportunity to address these gaps. Here, we integrate intersei...

Haicheng Xiong, Yan-Chuan Li, Xinjan Shan et al. · 0 citations
Open access Jul 2026

Pore pressure change during nucleation and slip along experimental faults

In order to clarify the main controlling factors influencing fluid pressure changes in fault zones during the seismic cycle, we conducted laboratory rock friction experiments where fluid pressure was monitored in situ during sequences of quasi-static loading followed by dynamic slip events. The simulated fault was a 30...

N. Brantut, F. Passelegue, P. Dublanchet · 0 citations

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