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Fluid regime in the source and preparation area of an earthquake
Peculiarities of the fluid regime in the source and in the area of preparation of an earthquake which accommodates the evolution of the precursors...
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Interseismic Coupling, Megathrust Earthquakes and Seismic Swarms Along the Chilean Subduction Zone (38°–18°S)
The recent expansion of dense GPS networks over plate boundaries allows for remarkably precise map** of interseismic coupling along active faults....
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Wavelet-Based Methods for Rapid Calculations of Magnitude and Epicentral Distance: An Application to Earthquake Early Warning System
The purpose of this study is to demonstrate the use of wavelet transform (WT) as the common processing tool for earthquake’s rapid magnitude...
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The Sensitivity of the Loa/Unload Response Ratio and Critical Region Selection Before Large Earthquakes
Occurrence of a large earthquake could be predicted by anomalous temporal increase of the Load/Unload Response Ratio (LURR). Previous studies have...
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Diagnosing Non-Meteorically Induced Variations in the Chemistry of Saline Springs of the Vrancea Seismic Area (Romania)
A monitoring operation conducted over more than seven years has been addressing chemical fluctuations displayed by several cool, low-discharge...
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VHF-electromagnetic evidence of the underlying pre-seismic critical stage
Based on the study of pre-seismic very high frequency (VHF) and very low frequency (VLF) electromagnetic signals, we attempt to establish a set of...
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Earthquake cycles and physical modeling of the process leading up to a large earthquake
A thorough discussion is made on what the rational constitutive law for earthquake ruptures ought to be from the standpoint of the physics of rock...
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Modeling slips and nucleation processes at the deeper part of the seismogenic zone
Important issues with regard to the generation processes of large inland earthquakes include how the stress concentrates and how nucleation starts in...
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Distinguished seismological and electromagnetic features of the impending global failure: Did the 7/9/1999 M5.9 Athens earthquake come with a warning?
Clear VLF electromagnetic (EM) anomalies were detected prior to the Athens earthquake (EQ). We attempt to establish the hypothesis that these...
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Stress on the seismogenic and deep creep plate interface during the earthquake cycle in subduction zones
The deep creep plate interface extends from the down-dip edge of the seismogenic zone down to the base of the overlying lithosphere in subduction...
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Variability of megathrust earthquakes in the world revealed by the 2011 Tohoku-oki Earthquake
The seismicity of the Pacific coast of Tohoku, Japan, has been investigated in detail and characterized into regional seismic segments. The 2011...
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Earthquake forewarning — A multidisciplinary challenge from the ground up to space
Most destructive earthquakes nucleate at between 5–7 km and about 35–40 km depth. Before earthquakes, rocks are subjected to increasing stress. Not...
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How did the 2011 off the Pacific coast of Tohoku Earthquake start and grow? The role of a conditionally stable area
The 2011 off the Pacific coast of Tohoku Earthquake broke a huge area of the plate interface; such a large event has not been observed before off the...
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Hydrogeological characterization of Gold Valley: an investigation of precipitation recharge in an intermountain basin in the Death Valley region, California, USA
Gold Valley is typical of intermountain basins in Death Valley National Park (DVNP), California (USA). Using water-balance calculations, a GIS-based...
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Seismic and aseismic fault slip before and during the 2011 off the Pacific coast of Tohoku Earthquake
The March 11, 2011, off the Pacific coast of Tohoku Earthquake is the first great subduction zone earthquake to be recorded by a dense, modern...
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Variations in the parameters of thunderstorm electromagnetic signals on paths over earthquake regions
The specific features of a method for radiosounding the lower ionosphere over earthquake epicenters using LF electromagnetic signals of thunderstorm...
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The enigma of helium
Helium was first observed in the sun and subsequently much later on the earth. Starting from the early days of its discovery, helium continues to be...
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Toward a unified solid state theory for pre-earthquake signals
Many different non-seismic pre-earthquake signals have been reported but there is great uncertainty about their origin, their correlation to each...
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Estimating the parameters of small earthquakes and their signals
This study is an attempt at a theoretical synthesis of the following earthquake parameters: the length and volume of the rupture zone, energy,...
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Introduction to Seismic Electric Signals
In the early 1980s, Varotsos and Alexopoulos showed that when the pressure (stress) on an ionic solid reaches a critical value, a cooperative...