Results 91 to 100 of about 3,607,543 (264)

Surface Rupture of the November 2002 M7.9 Denali Fault Earthquake, Alaska, and Comparison to Other Strike-Slip Ruptures

open access: yes, 2004
On November 3, 2002, a moment-magnitude (Mw) 7.9 earthquake produced 340 km of surface rupture on the Denali fault and two related faults in central Alaska.
Sherrod, B.   +8 more
core   +1 more source

Tsunamigenic earthquakes from tectonics to dynamic rupture

open access: yes, 2020
Earthquakes on large thrust faults in subduction zones can cause tsunamis with devastating consequences. Therefore, it is important to understand how these events nucleate, propagate, and generate tsunamis. As it is difficult to achieve this with the limited number of direct measurements of the conditions in subduction zones, many studies have ...
openaire   +2 more sources

A Phase‐Field Model for Quasi‐Dynamic Rupture Nucleation and Propagation of In‐Plane Faults

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Computational modeling of faulting processes is an essential tool for understanding earthquake mechanics but remains challenging due to the structural and material complexities of fault zones. The phase‐field method has recently enabled unified modeling of fault propagation and off‐fault damage within a fracture‐mechanics‐based framework ...
Fan Fei   +3 more
wiley   +1 more source

Pre‐Existing Off‐Fault Damage Can Impede Coseismic On‐Fault Slip

open access: yesGeophysical Research Letters
Primarily due to the scarce direct field evidence along a same fault, understanding the relationship between the pre‐existing off‐fault damage and coseismic slip distribution remains challenging.
C. H. Wu   +5 more
doaj   +1 more source

The Dynamics of Fast and Slow Earthquake Ruptures in Viscoelastic Materials

open access: yesJournal of Geophysical Research: Solid Earth
AbstractClassical 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 high speed. Here, we first use numerical
openaire   +1 more source

Integrating Grain to Ground Motion Data for Critical Rock Bridge and Slope Failure Analysis

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Rock masses can fail catastrophically with little warning, yet their stability depends on hidden internal connections that channel forces and localise damage. Among these, rock bridges–a “known unknown” in slope mechanics–lock fractured rock and control how failure unfolds, but their concealed geometry and uncertain strength obscure where and ...
Antoinette Tordesillas   +5 more
wiley   +1 more source

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

open access: yesGeophysical Research Letters
During an earthquake a dynamic rupture propagates, causing fractures and permanent damage that modify the mechanical properties of the fault and its surroundings.
A. R. Vishnu   +5 more
doaj   +1 more source

Determinants of Community Resilience: A Multi‐Level Synthesis of Empirical and Conceptual Evidence

open access: yesSustainable Development, EarlyView.
ABSTRACT Community resilience research remains fragmented across disciplines, with limited integration of empirical evidence and conceptual scholarship. This study addresses this gap through a directed content analysis of 48 empirical case studies and 39 conceptual and review publications from diverse geographical and hazard contexts.
Anamol Neupane   +2 more
wiley   +1 more source

Anomalous stress diffusion in earthquake triggering: Correlation length, time dependence, and directionality [PDF]

open access: yes, 2003
It has been recently suggested that moderate and large earthquakes can be triggered by similarly sized events at very long range. Here we study the main characteristics of earthquake triggering by determining its correlation length, time dependence, and ...
Ian G. Main   +3 more
core   +1 more source

TRM‐to‐concrete interface bond without anchors: Combined experimental, analytical, and numerical modeling approach

open access: yesStructural Concrete, EarlyView.
Abstract Textile reinforced mortar (TRM) systems have emerged as an effective alternative to conventional FRP strengthening solutions due to their compatibility with concrete substrates and favorable performance under adverse environmental conditions.
Ömer Mercimek   +4 more
wiley   +1 more source

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