Results 81 to 90 of about 2,047 (206)

Characterization of nucleation during laboratory earthquakes

Geophysical Research Letters, 2013
We observe the nucleation phase of in‐plane ruptures in the laboratory. We show that the nucleation is composed of two distinct phases, a quasi‐static and an acceleration stage, followed by dynamic propagation. We propose an empirical model which describes the rupture length evolution: The quasi‐static phase is described by an exponential growth while ...
Latour, S., Schubnel, A., Nielsen, S., Madariaga, R., Vinciguerra, S.   +4 more
openaire   +2 more sources

Grain Size and Fluid Effects on the Frictional Behavior of Simulated Carbonate Fault Gouge

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Carbonate rocks exhibit a span of clast and grain size in fault zones. However, the effect of grain size distribution on the frictional behavior of carbonate faults and its implications for natural and induced seismicity remain poorly understood.
Entela Kane, Anne M. H. Pluymakers, André R. Niemeijer   +2 more
wiley   +1 more source

Method and results of a 2D numerical simulation on earthquake nucleation

, 2021
this is a presentation of our new results of 2D numerical simulation on earthquake nucleation with detailed description of method, constitutive parameters and initial ...
Peixun Liu (11852900), Changrong He (8606841), Qi-fu Chen (10299026), Lei Zhang (10298994)   +3 more
core   +1 more source

Foreshocks, aftershocks, and static stress triggering of the 2020 Mw 4.8 Mentone Earthquake in west Texas

Seismica
Foreshocks are the most obvious signature of the earthquake nucleation stage and could, in principle, forewarn of an impending earthquake. However, foreshocks are only sometimes observed, and we have a limited understanding of the physics that controls ...
David C. Bolton, Nadine Igonin, Yangkang Chen, Daniel T. Trugman, Alexandros Savvaidis, Peter Hennings   +5 more
doaj   +1 more source

Multi‐Scale Rate‐ and Roughness‐Dependent Frictional Constitutive Law and Dynamic Earthquake Sequence Simulation

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract The physical mechanisms that govern the multi‐scale source properties of earthquakes, such as fracture energy scaling, where the dynamic energy dissipation of earthquakes scales with fault slip, remain debatable. We introduced the rate‐ and roughness‐dependent friction (RRF) law which accounts for the multi‐scale roughness evolution of the ...
Reiju Norisugi, Hiroyuki Noda
wiley   +1 more source

Basement Geometry and Cover‐Basement Relationships in the Central‐Western Jaca‐Pamplona Basin (Southern Pyrenees): Along‐Strike Variations and Role of Structural Inheritance

Tectonics, Volume 45, Issue 6, June 2026.
Abstract This study presents a detailed, geometrical characterization of the central‐western domain of the Jaca‐Pamplona Basin based on a combined interpretation of seismic and surface data and the construction of four serial cross‐sections. For the studied portion of the basin, our results highlight that the basement is notably folded and faulted and ...
Esther Izquierdo‐Llavall, Rosibeth Toro, Antonio Casas, Josep Anton Muñoz, Emilio L. Pueyo   +4 more
wiley   +1 more source

Is frictional heating needed to cause dramatic weakening of nanoparticle gouge during seismic slip? Insights from friction experiments with variable thermal evolutions

, 2016
To examine whether faults can be lubricated by preexisting and newly formed nanoparticles, we perform high-velocity friction experiments on periclase (MgO) nanoparticles and on bare surfaces of Carrara marble cylinders/slices, respectively.
Lu Yao, ERC-SEISMIC: Slip and earthquake nucleation in experimental and numerical simulations: a multi-scale, integrated and coupled approach, NWO-VIDI: Slip and Earthquake Nucleation in Experimental and Numerical Simulations: a Multi-scale, Integrated and Coupled Approach, Niemeijer, A.R., Shengli Ma, Toshihiko Shimamoto, John D. Platt, Shimamoto, T., Experimental rock deformation, Platt, J.D., Ma, S., André R. Niemeijer, Yao, L.   +12 more
core   +1 more source

Earthquake nucleation: small signals from Big Data [PDF]

, 2020
Catastrophic failure events, such as earthquakes, volcanic eruptions and landslides, are linked by material failure processes. Seismicity and strain data can be used to track the failure processes that might be occurring before large events, and which ...
Clement, Roseanne
core   +1 more source

19 Clustered Foreshock Sequences Along the San Jacinto Fault Zone: Possible Role of Frictional Heterogeneity in Extended Earthquake Nucleation

Geophysical Research Letters
Laboratory experiments and theoretical models suggest that earthquakes are preceded by extended nucleation phases, perhaps by slow but accelerating slip. However, such nucleation phases are hard to observe before natural earthquakes.
Hui Huang, Jessica C. Hawthorne
doaj   +1 more source

Source Parameters of the 1906 Manas (Mw 7.7), 1944 Xinyuan (Mw 7.2) and 1812 Nilke Earthquakes and Seismotectonics of the Borohoro Shan, Western China

Tectonics, Volume 45, Issue 6, June 2026.
Abstract The 1906 Manas Earthquake is the largest earthquake recorded in the Borohoro Shan (BRS) since 1900. The reported magnitude ranges from 7.2 to 8.3, but uncertainties remain regarding its size, mechanism, and responsible fault. Similar confusion exists for the 1812 Nilke and 1944 Xinyuan Earthquakes, the only other Mw > 7 earthquakes in the NE ...
C.‐H. Tsai, G. Kulikova, F. Krüger, R. T. Walker   +3 more
wiley   +1 more source