Results 71 to 80 of about 969,874 (233)

Microseismicity on Patches of Higher Compression During Larger‐Scale Earthquake Nucleation in a Rate‐and‐State Fault Model

Journal of Geophysical Research - Solid Earth, 2019
While many large earthquakes are preceded by observable foreshocks, the mechanism responsible for the occurrence of these smaller‐scale seismic events remains uncertain.
N. Schaal, N. Lapusta
semanticscholar   +1 more source

Implications of a percolation model for earthquake ‘nucleation’ [PDF]

Geophysical Journal International, 1998
A percolation model is applied to the explanation of some of the qualitative and quantitative aspects associated with the recent observations of earthquake ‘nucleation’. An additional assumption is introduced that nucleation starts at the critical point of percolation.
openaire   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Earthquake Nucleation on Geometrically Complex Faults [PDF]

, 2009
We have employed numerical approaches to study earthquake nucleation on geometrically complex faults governed by either slip-dependent friction or rate- and state- dependent friction.
Fang, Zijun
core  

The role of heterogeneity in long-range interacting systems : from nucleation to earthquake fault systems [PDF]

, 2016
The role of heterogeneity in two long-range systems is explored with a focus on the interplay of this heterogeneity with the component system interactions. The first will be the heterogeneous Ising model with long-range interactions.
Silva, James Brian
core   +1 more source

The rise and fall of a volcanic plateau: Landscape evolution at the fringes of the former Patagonian Ice Sheet, Meseta Chile Chico, central Patagonian Andes

Journal of Quaternary Science, EarlyView.
ABSTRACT Understanding Earth‐surface processes along the fringes of large ice sheets is integral to deciphering cold‐region environmental variability and anticipating slope instability under climate change. We investigate the Meseta Chile Chico, a volcanic plateau in the central Patagonian Andes, located at the eastern margin of the former Patagonian ...
Carolina Franco, Emma‐Louise Cooper, Antonio Maldonado, María Eugenia de Porras, Amalia Nuevo‐Delaunay, César Méndez, Varyl R. Thorndycraft, Alessa Geiger, Bernd Zolitschka   +8 more
wiley   +1 more source

Scientific Exploration of Induced SeisMicity and Stress (SEISMS) [PDF]

Scientific Drilling, 2017
Several major fault-drilling projects have captured the interseismic and postseismic periods of earthquakes. However, near-field observations of faults immediately before and during an earthquake remain elusive due to the unpredictable nature of ...
H. M. Savage, J. D. Kirkpatrick, J. J. Mori, E. E. Brodsky, W. L. Ellsworth, B. M. Carpenter, X. Chen, F. Cappa, Y. Kano   +8 more
doaj   +1 more source

Influence of Incoming Plate Relief on Overriding Plate Deformation and Earthquake Nucleation: Cocos Ridge Subduction (Costa Rica)

Tectonics, 2019
We present a 2‐D P wave velocity model and a coincident multichannel seismic reflection profile characterizing the structure of the southern Costa Rica margin and incoming Cocos Ridge.
S. Martínez-Loriente, V. Sallarés, C. Ranero, J. Ruh, U. Barckhausen, I. Grevemeyer, N. Bangs   +6 more
semanticscholar   +1 more source

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

International 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, Md Shumon Mia, Ahmed E. Elbanna, Jinhyun Choo   +3 more
wiley   +1 more source

Elastic properties of rocks from the seismogenic zone and minimum fault size to nucleate megathrust earthquakes

Progress in Earth and Planetary Science
The elastic properties of rocks in subduction zones are indicators of the stress states and determine the critical length required for earthquake nucleation.
Hanaya Okuda, Yuya Akamatsu, Manami Kitamura, Michiyo Sawai   +3 more
doaj   +1 more source