Results 51 to 60 of about 2,047 (206)

New Physical Implications From Revisiting Foreshock Activity in Southern California

Geophysical Research Letters, 2023
Foreshock analysis promises new insights into the earthquake nucleation process and could potentially improve earthquake forecasting. Well‐performing clustering models like the Epidemic‐Type Aftershock Sequence (ETAS) model assume that foreshocks and ...
Ester Manganiello, Marcus Herrmann, Warner Marzocchi   +2 more
doaj   +1 more source

The sharp turn: Backward rupture branching during the 2023 Mw 7.8 Kahramanmaraş (Türkiye) earthquake

Seismica, 2023
Multiple lines of evidence indicate that the 2023 Mw 7.8 Kahramanmaraş (Türkiye) earthquake started on a splay fault, then branched bilaterally onto the nearby East Anatolian Fault (EAF).
Xiaotian Ding, Shiqing Xu, Yuqing Xie, Martijn van den Ende, Jan Premus, Jean-Paul Ampuero   +5 more
doaj   +1 more source

Pervasive Foreshock Activity Across Southern California

Geophysical Research Letters, 2019
Foreshocks have been documented as preceding less than half of all mainshock earthquakes. These observations are difficult to reconcile with laboratory earthquake experiments and theoretical models of earthquake nucleation, which both suggest that ...
Daniel T. Trugman, Zachary E. Ross
doaj   +1 more source

Earthquake rupture propagation inferred from the spatial distribution of fault rock frictional properties

, 2014
The frictional properties of fault rocks that rupture during earthquakes are expected to affect the nucleation and propagation of seismic slip, but these properties and their variation under in-situ earthquake conditions are typically unknown.
Niemeijer, André R., Structural geology and EM, ERC-SEISMIC: Slip and earthquake nucleation in experimental and numerical simulations: a multi-scale, integrated and coupled approach, Vissers, Reinoud L M, NWO-VIDI: Slip and Earthquake Nucleation in Experimental and Numerical Simulations: a Multi-scale, Integrated and Coupled Approach, Experimental rock deformation   +5 more
core   +1 more source

Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]

, 2004
Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Ira O. Ojala, Main, Ian G.; id_orcid, Ojala, Ira O., Ngwenya, Bryne T.   +3 more
core   +1 more source

The evolution process between the earthquake swarm beneath the Noto Peninsula, central Japan and the 2024 M 7.6 Noto Hanto earthquake sequence

Earthquake Research Advances
Several physical mechanisms of earthquake nucleation, such as pre-slip, cascade triggering, aseismic slip, and fluid-driven models, have been proposed.
Zhigang Peng, Xinglin Lei, Qing-Yu Wang, Dun Wang, Phuc Mach, Dongdong Yao, Aitaro Kato, Kazushige Obara, Michel Campillo   +8 more
doaj   +1 more source

A Struggled Rupture Initiation of the Mw 6.1 2009 L’Aquila Earthquake

Geophysical Research Letters, 2023
Understanding under which physical conditions large earthquakes begin, is a key question in Earth science. Laboratory experiments and numerical models have shown that earthquake nucleation has distinct phases: a quasi‐static and an acceleration stage ...
Leoncio Cabrera, Piero Poli
doaj   +1 more source

Large-displacement, hydrothermal frictional properties of DFDP-1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation

, 2016
The Alpine Fault, New Zealand, is a major plate-bounding fault that accommodates 65–75% of the total relative motion between the Australian and Pacific plates.
R. Sutherland, ERC-SEISMIC: Slip and earthquake nucleation in experimental and numerical simulations: a multi-scale, integrated and coupled approach, John Townend (8509452), NWO-VIDI: Slip and Earthquake Nucleation in Experimental and Numerical Simulations: a Multi-scale, Integrated and Coupled Approach, Niemeijer, A.R., C. Boulton, Carolyn Boulton (8511435), Experimental rock deformation, VG Toy (10120421), J. Townend, Townend, J., Sutherland, R., A. R. Niemeijer, V. G. Toy, Toy, V.G., AR Niemeijer (10120418), Boulton, C., Rupert Sutherland (8510148)   +17 more
core   +1 more source

Simulation of Dynamic Interface Fracture Using Spectral Boundary Integral Method [PDF]

, 2009
Simulation of three-dimensional dynamic fracture events constitutes one of the most challenging topics in the field of computational mechanics. Spontaneous dynamic fracture along the interface of two elastic solids is of great importance and interest to ...
Harish, Ajay Bangalore
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source