Results 61 to 70 of about 7,837 (204)

Spatially Consistent Small‐Scale Stress Heterogeneity Revealed by the 2008 Mogul, Nevada, Earthquakes

open access: yesThe Seismic Record, 2023
We compute and analyze stress drops for 4175 earthquakes (M_L 0–5) in the 2008 Mogul, Nevada, swarm–mainshock sequence using a spectral decomposition approach that uses depth‐dependent path corrections.
Christine J. Ruhl   +2 more
doaj   +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

Faults Self-Organized by Repeated Earthquakes in a Quasi-Static Antiplane Crack Model [PDF]

open access: yes, 1995
We study a 2D quasi-static discrete {\it crack} anti-plane model of a tectonic plate with long range elastic forces and quenched disorder. The plate is driven at its border and the load is transfered to all elements through elastic forces. This model can
Sornette, Didier, Vanneste, Christian
core   +5 more sources

Foreshocks and Mainshock Nucleation of the 1999 Mw 7.1 Hector Mine, California, Earthquake

open access: yesJournal of Geophysical Research: Solid Earth, 2019
Foreshocks provide valuable information on the nucleation process of an upcoming large earthquake. We applied high‐resolution similar‐waveform techniques for earthquake detection, location, and source parameter estimation to understand the space‐time ...
C. Yoon   +3 more
semanticscholar   +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

Electro-Magnetic Earthquake Bursts and Critical Rupture of Peroxy Bond Networks in Rocks

open access: yes, 2006
We propose a mechanism for the low frequency electromagnetic emissions and other electromagnetic phenomena which have been associated with earthquakes. The mechanism combines the critical earthquake concept and the concept of crust acting as a charging ...
Allègre   +158 more
core   +1 more source

Dynamics of the foreshock compressional boundary and its connection to foreshock cavities [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
AbstractWe use several global hybrid (kinetic ions, fluid electrons) simulation runs for steady and time‐varying interplanetary magnetic field (IMF) conditions to examine the dynamics of the foreshock compressional boundary (FCB) and its connection to foreshock cavities.
N. Omidi   +6 more
openaire   +1 more source

Simulation study of the inhomogeneous Olami-Feder-Christensen model of earthquakes

open access: yes, 2010
Statistical properties of the inhomogeneous version of the Olami-Feder-Christensen (OFC) model of earthquakes is investigated by numerical simulations. The spatial inhomogeneity is assumed to be dynamical.
A. Helmstetter   +32 more
core   +2 more sources

Importance of small earthquakes for stress transfers and earthquake triggering

open access: yes, 2004
We estimate the relative importance of small and large earthquakes for static stress changes and for earthquake triggering, assuming that earthquakes are triggered by static stress changes and that earthquakes are located on a fractal network of ...
Abercrombie   +66 more
core   +4 more sources

Nucleation and Cascade Features of Earthquake Mainshock Statistically Explored from Foreshock Seismicity

open access: yesEntropy, 2019
The relation between the size of an earthquake mainshock preparation zone and the magnitude of the forthcoming mainshock is different between nucleation and domino-like cascade models.
Masashi Kamogawa   +5 more
doaj   +1 more source

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