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Earthquakes are notoriously hard to predict, and so too are the usually less-severe aftershocks that often follow a major seismic event.
Chaotic behavior of seismic mechanisms: experiment and observation
Earthquake modeling chaos theory
2015/8/24
To simulate the dynamics of earthquakes, a mechanical prototype was constructed that was inspired by the Burridge-Knopoff model and equipped with accurate instrumental devices. The data obtained by th...
A note on chaotic vs. stochastic behavior of the high-latitude ionospheric plasma density fluctuations
stochastic behavior high-latitude ionospheric plasma density fluctuations
2009/11/16
Four data sets of density fluctuations measured in-situ by the Dynamics Explorer (DE 2) were analyzed in an attempt to study chaotic nature of the high-latitude turbulence and, in this way to compleme...
A simple model for the earthquake cycle combining self-organized complexity with critical point behavior
earthquake cycle self-organized complexity critical point behavior
2009/11/12
We have studied a hybrid model combining the forest-fire model with the site-percolation model in order to better understand the earthquake cycle. We consider a square array of sites. At each time ste...
This paper explores log-periodicity in a forest-fire cellular-automata model. At each time step of this model a tree is dropped on a randomly chosen site; if the site is unoccupied, the tree is plante...
Recurrence and interoccurrence behavior of self-organized complex phenomena
Recurrence and interoccurrence behavior self-organized complex phenomena
2009/11/3
The sandpile, forest-fire and slider-block models are said to exhibit self-organized criticality. Associated natural phenomena include landslides, wildfires, and earthquakes. In all cases the frequenc...
Multivariate analysis of nonlinearity in sandbar behavior
Multivariate analysis nonlinearity sandbar behavior
2009/10/30
Alongshore sandbars are often present in the nearshore zones of storm-dominated micro- to mesotidal coasts. Sandbar migration is the result of a large number of small-scale physical processes that are...
Anaseismic slip pulse in northern Chile and along-strike variations in seismogenic behavior
Aseismic slip pulse in northern Chile along-strike variations in seismogenic behavior
2014/4/9
We use interferometric synthetic aperture radar, GPS, and seismic observations spanning 5 to 18 years to reveal a detailed kinematic picture of the spatiotemporal evolution of fault slip in a region c...
Large Trench-Parallel Gravity Variations Predict Seismogenic Behavior in Subduction Zones
Large Trench-Parallel Gravity Variations Predict Seismogenic Behavior in Subduction Zones
2014/4/9
We demonstrate that great earthquakes occur predominantly in regions with a strongly negative trench-parallel gravity anomaly (TPGA), whereas regions with strongly positive TPGA are relatively aseismi...