Results 91 to 100 of about 22,222 (295)

Sediment-modulated supershear rupture of the 2025 Mw 7.7 Myanmar earthquake

open access: yesCommunications Earth & Environment
The 2025 Myanmar earthquake caused heavy casualties and economic losses in Myanmar and surrounding regions. The mechanism of the unexpectedly long rupture and the effect of sediments on its rupture dynamics remain unclear.
Duyuan Xu   +11 more
doaj   +1 more source

Rupture process of the recent large Sumatra earthquakes: 26/12/2004 (Mw=9.3) and 28/03/2005 (Mw=8.6) [PDF]

open access: yes, 2005
The Sumatra mega-earthquake with magnitude 9.3 of 26 December 2004 was the strongest earthquake in the world since the 1964 Alaska earthquake and the fourth since 1900.
Bezzeghoud, M.   +2 more
core  

Recent Milestones in Unraveling the Full-Field Structure of Dynamic Shear Cracks and Fault Ruptures in Real-Time: From Photoelasticity to Ultrahigh-Speed Digital Image Correlation [PDF]

open access: yes, 2020
The last few decades have seen great achievements in dynamic fracture mechanics. Yet, it was not possible to experimentally quantify the full-field behavior of dynamic fractures, until very recently.
Lapusta, N., Rosakis, A. J., Rubino, V.
core  

A mechanism for preseismic steady rupture fronts observed in laboratory experiments [PDF]

open access: yes, 2011
It has been shown that the onset of frictional instability is characterized by a transition from stable, quasi-static rupture growth to unstable, inertially-controlled high-speed rupture.
Ampuero, J.-P., Kaneko, Y.
core   +1 more source

Regional Adjustments to NGA‐West2 Ground‐Motion Models for Turkey

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper presents a ground‐motion model updating (GMMU) framework to adjust NGA‐West2 models for predicting a set of intensity measures in Turkey, including peak ground acceleration (PGA), peak ground velocity (PGV), and pseudo‐spectral acceleration (PSA) at periods ranging from 0.01 to 10 s. The GMMU framework integrates bias identification
Mao‐Xin Wang, Gang Wang
wiley   +1 more source

Magnitude-Dependent Omori Law: Empirical Study and Theory

open access: yes, 2004
We propose a new physically-based ``multifractal stress activation'' model of earthquake interaction and triggering based on two simple ingredients: (i) a seismic rupture results from activated processes giving an exponential dependence on the local ...
Ouillon, G., Sornette, D.
core   +1 more source

GPS source solution of the 2004 Parkfield earthquake [PDF]

open access: yes, 2014
We compute a series of finite-source parameter inversions of the fault rupture of the 2004 Parkfield earthquake based on 1 Hz GPS records only. We confirm that some of the co-seismic slip at shallow depth (
Dreger, D., Houlie, N., Kim, A.
core   +2 more sources

Behavior of Long‐Slotted Perforated Steel Plate Fuses in Timber Brace End Connections

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Steel perforated plate fuses have emerged as a promising solution for mass timber seismic force‐resisting systems, offering tunable energy dissipation mechanisms, such as flexural and shear yielding, through geometric adjustments. This study examines the cyclic performance of perforated steel plate fuses employed in timber braced frames, with ...
Yahia Ahmed   +2 more
wiley   +1 more source

Universal mean moment rate profiles of earthquake ruptures

open access: yes, 2005
Earthquake phenomenology exhibits a number of power law distributions including the Gutenberg-Richter frequency-size statistics and the Omori law for aftershock decay rates.
Amit P. Mehta   +17 more
core   +1 more source

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source

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