Parametric instability of water drops in an electric field as a possible mechanism for luminous phenomena accompanying earthquakes

Grigoryev, A. I.; Gershenzon, Naum I.; Гохберг, М. Б.

doi:10.1016/0031-9201(89)90223-9

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Such phenomena have been discussed in several monographs and reviews [Gokhberg et al, 1995;Hayakawa and Fujinawa, 1994;Johnston, 1989Johnston, , 1997Lighthill, 1996;Park, 1996;Park et al, 1993;Rikitake, 1976aRikitake, , 1976b. We wish to describe briefly a scenario for them based on 1) analysis of experimental field and laboratory data and 2) modeling of electromagnetic emission which incorporates a mechanical model for pre-seismic deformation developed by us over the past fifteen years [Dobrovolsky et al, 1989;Gershenzon, 1992;Gershenzon and Gokhberg, 1989Gershenzon et al, 1986Gershenzon et al, , 1987Gershenzon et al, , 1989aGershenzon et al, , 1989bGershenzon et al, , 1990Grigoryev et al, 1989;Wolfe et al, 1996]. We have used specific mechanical models of pre-earthquake processes [Dobrovolsky, 1991;Karakin, 1986;Karakin and Lobkovsky, 1985] in some of these articles.…”

Section: Introductionmentioning

confidence: 99%

Modeling of seismo-electromagnetic phenomena

Gershenzon¹,

Bambakidis²

2001

Russ. J. Earth Sci.

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Abstract.A model for seismo-electromagnetic (SEM) phenomena is described. The electromagnetic signals generated by mechanical disturbances in the earths crust have been calculated and compared with reported seismo-electromagnetic signals (SEMS). The major known SEM phenomena, namely, tectonomagnetic variations, electrotelluric anomalies, geomagnetic variations in the ultra-low frequency range and electromagnetic emission in the radio frequency range, have been considered. We have calculated the spectral densities associated with various types of sources. The set of formulas necessary to calculate the detected (filtered and averaged) electric and magnetic fields generated by mechanical disturbances for a wide range of frequencies and at various distances from the source are presented. Based on these formulas, we discuss the conditions under which electrokinetic, piezomagnetic and piezolectric effects could be responsible for SEMS. A comparison of estimated values of SEMS with reported field measurements leads to the conclusion that the sources of most anomalous SEMS are relatively close to the detector. In other words, the source of the signal is local, although the source of the mechanical disturbance which activates it, i.e. the epicenter of an earthquake, may be far away. Recommendations for field experiments (appropriate detector sitting, detector parameters and frequency range) following from the model developed here are presented.

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Section: Introductionmentioning

confidence: 99%

Modeling of seismo-electromagnetic phenomena

Gershenzon¹,

Bambakidis²

2001

Russ. J. Earth Sci.

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“…There have been many hypotheses to explain these phenomena that range from nuclear-like processes, similar to ball lightning [7], to piezoelectric manifestations from moving pressure gradients [8]. Parametric instability of water droplets in an electric field has been suggested as one mechanism [9] exacerbated by pore fluid pressure in anisotropic rocks [10] to produce luminous phenomena with life times in the order of 10 to 100 s. Plasma fireballs with durations of several minutes were produced reliably by microwave (2.45 GHz), kW power oscillators in the laboratory by Ohtsuki and Ofuruton [11].…”

Section: Introductionmentioning

confidence: 99%

Luminous Shapes with Unusual Motions as Potential Predictors of Earthquakes: A Historical Summary of the Validity and Application of the Tectonic Strain Theory

Persinger

Derr²

2013

IJG

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For centuries and on every continent discrete shapes of lights with unusual motions have preceded earthquakes. The numbers of these lights per interval within a region have been strongly correlated with the amount of seismic energy subsequently released within that region. These temporal intervals range between 3 months and 6 months for areas more than 500 km in radius and less than a month for smaller radii. Other analyses have shown that the same tectonic strain associated with earthquakes is also associated with the display of luminous events before those earthquakes. This strain can be precipitated by injections of fluids into the crust, natural changes in hydrological loads on rivers, or, purposeful displacement of water into reservoirs. The strengths of the associations are sufficient to allow modest forecasting of earthquakes within the boundaries of the region and the temporal interval of analysis. More accurate utilization of these phenomena as prognosticators of specific earthquakes will require a re-evaluation of the manner by which these data are systematically recorded and interpreted.

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Parametric instability of water drops in an electric field as a possible mechanism for luminous phenomena accompanying earthquakes

Cited by 2 publications

References 5 publications

Modeling of seismo-electromagnetic phenomena

Modeling of seismo-electromagnetic phenomena

Luminous Shapes with Unusual Motions as Potential Predictors of Earthquakes: A Historical Summary of the Validity and Application of the Tectonic Strain Theory

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