Huihui Weng

Rupture Dynamics of Fast and Slow Earthquakes Controlled by Fluids

Yi Gao, Huihui Weng

Fluids are ubiquitous in fault zones and can control rupture propagation through thermally induced pressurization and shear-induced dilatancy, which modulate pore pressure and thus fault strength. Among the mechanisms proposed for fast earthquakes and slow slip events, fault-zone fluids are particularly relevant …

by, cn (code pays fourni par la source)

SEM2DPACK TP-dilatancy extension for finite-width rupture simulations

Yi Gao, Huihui Weng

TP-dilatancy extension of SEM2DPACK used for the finite-width rupture simulations in Project1. This release includes: the coupled thermal-pressurization, fault-normal diffusion, and dilatancy implementation; one compact runnable input example in EXAMPLES/Project1_TP_Dilatancy/; documentation of modifications relative to the upstream SEM2DPACK source; build and smoke-test …

SEM2DPACK TP-dilatancy extension for finite-width rupture simulations

Yi Gao, Huihui Weng

TP-dilatancy extension of SEM2DPACK used for the finite-width rupture simulations in Project1. This release includes: the coupled thermal-pressurization, fault-normal diffusion, and dilatancy implementation; one compact runnable input example in EXAMPLES/Project1_TP_Dilatancy/; documentation of modifications relative to the upstream SEM2DPACK source; build and smoke-test …

A theoretical model for physics-based estimation of maximum earthquake sizes

Huihui Weng, Loes Buijze, Jean‐Paul Ampuero

Because faults have a finite seismogenic depth, the largest earthquakes grow by developing horizontally-elongated ruptures. This can also be the case for induced seismicity: for instance, on faults intersecting a gas field, ruptures may be confined to depths within or in the …

fr, cn, nl (code pays fourni par la source)

Crustal rheology controls long-term topographic growth and seismicity in the eastern Tibetan Plateau

Yuqiong Mao, Yiquan Li, Chuang Sun, Huihui Weng et autres

cn (code pays fourni par la source)

Rupture Complexities of Slow Slip Events Controlled by Fault Friction Mechanics

Yiran Shi, Huihui Weng

Slow slip events (SSEs) are usually observed in elongated transitional zones between the seismogenic and creeping regions of the subduction zones, with the potentials to trigger large subduction earthquakes. Geodetic observations of SSEs in the Cascadia subduction zone (Michel et al., 2019) …

cn (code pays fourni par la source)

Rupture Jumping Across Fault Stepovers: An Extension of Rupture-Tip Theory of Elongated Earthquakes

Vincent van der Heiden, Huihui Weng, Jean-Paul Ampuero, Ylona van Dinther

Stepovers between fault segments are a key structural control on rupture propagation, often determining whether ruptures terminate or cascade into large, multi-segment earthquakes. These dynamics critically influence earthquake magnitude and seismic hazard. Theoretical models, in particular the rupture-tip equation of motion for …

nl, fr, cn (code pays fourni par la source)

Discrepancies and controlling factors of rupture depths inffered from geodesy, seismicity and thermally constrained rate-and-state friction models

Xiaohua Xu, Xinyu Zhao, Huihui Weng

Seismogenic depth is a fundamental parameter in seismic hazard assessment and is commonly inferred from kinematic approaches that rely on empirically defined thresholds. However, these observational estimates require validation and calibration against physics-based earthquake cycle models. Here we focus on the San …

cn (code pays fourni par la source)

Bimaterial Effect and Favorable Energy Ratio Enabled Supershear Rupture in the 2025 Mandalay Quake

Liuwei Xu, Lingsen Meng, Zhang Yunjun, Yanchen Yang et autres

Joint seismic and geodetic analyses reveal that the 2025 Mw 7.8 Mandalay, Myanmar earthquake ruptured ~510 km of the Sagaing Fault, including a sustained supershear rupture extending ~450 km along the southern branch and a shorter ~60 km subshear rupture to the …

fr, us, cn (code pays fourni par la source)

Bimaterial effect and favorable energy ratio enabled supershear rupture in the 2025 Mandalay earthquake

Liuwei Xu, Lingsen Meng, Zhang Yunjun, Yanchen Yang et autres

) 7.8 Mandalay, Myanmar, earthquake ruptured ~510 km of the Sagaing fault, with a sustained supershear rupture extending ~450 km on the southern branch. Far-field Mach waves and near-field ground motion confirmed the supershear nature. This exceptionally long supershear rupture caused building …

us, cn (code pays fourni par la source)

The Dynamics of Fast and Slow Earthquake Ruptures in Viscoelastic Materials

Huihui Weng

Abstract Classical theories using linear elasticity predict that crack propagation asymptotically approaches a limiting speed, beyond which the energy balance becomes unphysical. However, geophysical and laboratory observations show that ruptures can propagate at either a very low, stable speed or a significantly …

cn (code pays fourni par la source)

Multiscale fault-zone structures governed by earthquake rupture dynamics

Huihui Weng, Dezheng Zhao, Qin Wang, Yijian Zhou et autres

cn, us (code pays fourni par la source)