Results 51 to 60 of about 3,946 (197)

Theory of Earthquake Recurrence Times [PDF]

open access: yes, 2006
The statistics of recurrence times in broad areas have been reported to obey universal scaling laws, both for single homogeneous regions (Corral, 2003) and when averaged over multiple regions (Bak et al.,2002).
Aczél   +62 more
core   +3 more sources

Planetary foreshock radio emissions [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2005
The electron foreshock regions upstream of Earth's bow shock and upstream of traveling interplanetary shocks are known to be propitious sites for a variety of energetic particle and plasma wave phenomena, including radio emissions. A quantitative theoretical model has been developed for radio emissions associated with the terrestrial foreshock and for ...
Zdenka Kuncic, Iver H. Cairns
openaire   +1 more source

Extensive Characterization of Seismic Laws in Acoustic Emissions of Crumpled Plastic Sheets

open access: yes, 2016
Statistical similarities between earthquakes and other systems that emit cracking noises have been explored in diverse contexts, ranging from materials science to financial and social systems. Such analogies give promise of a unified and universal theory
Costa, Leandro S.   +3 more
core   +1 more source

Characteristics of Foreshock Subsolar Compressive Structures

open access: yesJournal of Geophysical Research: Space Physics, 2023
AbstractThe turbulent foreshock region upstream of the quasi‐parallel bow shock is dominated by waves and reflected particles that interact with each other and create a large number of different foreshock transients. The structures with the enhanced magnetic field, Short Large Amplitude Magnetic Structures, and density spikes named plasmoids are ...
Niki Xirogiannopoulou   +3 more
openaire   +1 more source

Synchronization and desynchronization in the Olami-Feder-Christensen earthquake model and potential implications for real seismicity [PDF]

open access: yesNonlinear Processes in Geophysics, 2011
The Olami-Feder-Christensen model is probably the most studied model in the context of self-organized criticality and reproduces several statistical properties of real earthquakes.
S. Hergarten, R. Krenn
doaj   +1 more source

Asperity characteristics of the Olami-Feder-Christensen model of earthquakes

open access: yes, 2010
Properties of the Olami-Feder-Christensen (OFC) model of earthquakes are studied by numerical simulations. The previous study indicated that the model exhibits ``asperity''-like phenomena, {\it i.e.}, the same region ruptures many times near periodically
C. H. Scholz   +6 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]

open access: yes, 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.
Aki   +24 more
core   +1 more source

Interseismic, Coseismic, and Early Postseismic Slip Associated With the 2025 Mw 8.8 Kamchatka Earthquake

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Unraveling the surface deformation and fault kinematics during the seismic cycle is crucial for understanding earthquake physics. Herein, we use geodetic and seismic observations to quantify the interseismic coupling, coseismic rupture, and postseismic afterslip associated with the 2025 Mw 8.8 Kamchatka earthquake.
Yang Xiao   +8 more
wiley   +1 more source

Analysis of short time-space range seismicity patterns in Italy

open access: yesAnnals of Geophysics, 1997
In our paper we analyze the data base obtained from the observations of the Italian Seismological Network from 1975 to 1994 by using a simple algotithm to determine the rate of occurrence of seismic events condi- tioned by the occurrence of previous ...
M. Imotof   +3 more
doaj   +1 more source

Large‐Scale Magnetosheath Jets Formed by Shock‐Discontinuity Interactions: A Three‐Dimensional Global Hybrid Simulation

open access: yesGeophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Magnetosheath high‐speed jets with enhanced dynamic pressure are common in Earth's magnetosheath and can impinge on the magnetopause, driving pronounced boundary deformation. Recent observations indicate that shock–discontinuity interactions (SDIs) can generate magnetosheath jets, but the formation mechanism is still unclear.
Jin Guo   +13 more
wiley   +1 more source

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