Use of electromagnetic radiation for potential forecast of earthquakes

Rabinovitch, A.; Frid, Vladimir; Bahat, Dov

doi:10.1017/s0016756817000954

Cited by 19 publications

(20 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One relevant property of rock samples is the increasing number of cracks before the main failure [ 7 , 8 , 54 , 69 ]. This means that the role of cracking and its electromagnetic signals correspond to a pre-failure feature that can be used as a forecast for major earthquakes [ 4 ]. On the other hand, it is known that the lithospherical surface deformation is a feature of the interseismic cycle which is observed in the middle of two large earthquakes [ 82 ].…”

Section: Resultsmentioning

confidence: 99%

“…The first approach makes impossible the forecast of major earthquakes due to two main reasons: the vanishing seismic source information due to the attenuation of seismic waves [ 4 ] and, the interplay among different heterogeneous physical processes that make the rupture chaotic [ 5 ]. Despite this, it has been recently shown that any prediction should be done using multidisciplinary precursors [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Natural Fractals as Irreversible Disorder: Entropy Approach from Cracks in the Semi Brittle-Ductile Lithosphere and Generalization

Venegas-Aravena

Cordaro

Laroze

2022

Entropy

View full text Add to dashboard Cite

The seismo-electromagnetic theory describes the growth of fractally distributed cracks within the lithosphere that generate the emission of magnetic anomalies prior to large earthquakes. One of the main physical properties of this theory is their consistency regarding the second law of thermodynamics. That is, the crack generation of the lithosphere corresponds to the manifestation of an irreversible process evolving from one steady state to another. Nevertheless, there is still not a proper thermodynamic description of lithospheric crack generation. That is why this work presents the derivation of the entropy changes generated by the lithospheric cracking. It is found that the growth of the fractal cracks increases the entropy prior impending earthquakes. As fractality is observed across different topics, our results are generalized by using the Onsager’s coefficient for any system characterized by fractal volumes. It is found that the growth of fractality in nature corresponds to an irreversible process.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Natural Fractals as Irreversible Disorder: Entropy Approach from Cracks in the Semi Brittle-Ductile Lithosphere and Generalization

Venegas-Aravena

Cordaro

Laroze

2022

Entropy

View full text Add to dashboard Cite

show abstract

“…Pulses emanating from FEMR sources have the shape as depicted in Fig. 12 which are "multiple single pulses" as opposed to EMR signals which are continuous in nature (Rabinovitch et al 2018;Das et al 2020). Furthermore, ANGEL-M is equipped with a second-order high-pass analog filter to refine the obtained signals and a "set trigger" option to set the signal-noise ratio of the incoming signals.…”

Section: Methodsmentioning

confidence: 99%

“…The generation of the fracture-induced electromagnetic radiation (FEMR) owes its existence to the incremental increase in stress subjected to the brittle rock bodies in the near surface of the Earth's crust. This phenomenon leads to the occurrence of fracturing in the rock bodies which, in turn, leads to the generation of FEMR pulses having a frequency range of MHz to kHz (Mallik et al 2008;Rabinovitch et al 2007Rabinovitch et al , 2017Rabinovitch et al , 2018Das et al 2020). The FEMR pulses emanate from microcracks/nanocracks present in the brittle rock bodies.…”

Section: Basics Of Fracture-induced Electromagnetic Radiation (Femr)mentioning

confidence: 99%

Application of Fracture Induced Electromagnetic Radiation (FEMR) technique to detect landslide-prone slip planes

et al. 2020

View full text Add to dashboard Cite

Landslides are one of the many catastrophic events which result in massive destruction and loss of lives across the globe. Hence, an appropriate forecasting technique is essential in order to predict such potential weak slip planes which may eventually lead to landslides. Here, we present a study where Fracture Induced Electromagnetic Radiation (FEMR) technique has been used to identify such regions of potential "activity" in a study area around IISER Bhopal Hill, India, stretched along a length of approximately 1 km. The hill is majorly composed of basaltic rocks belonging to the Deccan traps which have been heavily weathered and have resulted in the formation of unconsolidated soil cover. In numerous locations, it has been observed that natural gullies have formed as a result of the breakage of masses from weak slip planes. In this study, we have taken linear measurements along four different profiles along and across the hill using a portable measuring device ANGEL-M. Anomalously high amplitudes of FEMR values are obtained in the regions which consist of weak slip planes which can be considered to be potential zones of future landslides. The results were further verified by calculating the factor of safety for a few locations along the profiles where anomalies in the FEMR data were compared. Consequently, predicting areas prone to natural calamities such as landslides has always been a priority in terms of current research. Hence, we have made an active endeavor to propose a new technique in order to identify landslide-prone areas by detecting the adjoining weak slip planes.

show abstract

“…Rabinovitch et al have stated that the fracture-induced electromagnetic radiation has better strength than those obtained in the seismic measurements due to the less attenuation property of the fracture-induced EMR [116]. Fujinawa and Noda have presented a study of 13 electric field monitoring stations in Japan near earthquake zone and have discussed the progress in the use of electromagnetism for the earthquake prediction and earlier warning [117].…”

Section: Rocks and Brittle Materialsmentioning

confidence: 99%

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

2020

View full text Add to dashboard Cite

Development of the deformation monitoring techniques for the infrastructures so as to avoid catastrophic failure and resulting economic/human loss has remained a key interest of scientists and engineers. Among various deformation monitoring techniques utilized and explored by groups of researchers, electromagnetic radiation detection is one of the intriguing techniques which has remained popular in researchers’ community till today. Almost every type of material is being explored and studied by researchers for the electromagnetic emissions when subjected to external loading and/or failure. Experimental and theoretical investigations are demonstrating these emissions to be a suitable candidate for the deformation monitoring, as a failure predictor and to know about the complex phenomenon of fracture. This article presents extensive literature review and a rigorous discussion on the work done in the past several decades regarding the exploration of electromagnetic emissions from a wide variety of materials and the underlying physical mechanisms. Thus, this review is an attempt to highlight main findings, proposed physical mechanisms, prospective applications, future scope and challenges of the electromagnetic emission detection technique.

show abstract

Use of electromagnetic radiation for potential forecast of earthquakes

Cited by 19 publications

References 21 publications

Natural Fractals as Irreversible Disorder: Entropy Approach from Cracks in the Semi Brittle-Ductile Lithosphere and Generalization

Natural Fractals as Irreversible Disorder: Entropy Approach from Cracks in the Semi Brittle-Ductile Lithosphere and Generalization

Application of Fracture Induced Electromagnetic Radiation (FEMR) technique to detect landslide-prone slip planes

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

Contact Info

Product

Resources

About