KFU. Card publication. Display of seismic events in electro-magnetic field and ionosphere

KAZAN
FEDERAL UNIVERSITY

- RUS
- 中文
- ES

DISPLAY OF SEISMIC EVENTS IN ELECTRO-MAGNETIC FIELD AND IONOSPHERE

Form of presentation

International monographs

Year of publication

2022

Язык

английский

Authors, employees of KFU

Belashov Vasiliy Yurevich, author

Other authors

Kharshiladze Oleg Avtandilovich, author

Bibliographic description in the original language

Belashov V.Yu., Kharshiladze O.A. Display of seismic events in electro-magnetic field and ionosphere (monograph). In: Lecture Notes of TICMI, Tbilisi, Tbilisi Int. Centre of Mathematics and Informatics, 2022. 51 p.

Annotation

The results of experimental and theoretical studies of the problem of manifestation of seismic events in the electromagnetic (EM) field and in the Earth's ionosphere are presented. The Section 1.1 of the book presents the results of laboratory investigations in the ULF and VLF frequency ranges with use of the experimental complex specially developed. The possibility of the occurrence of pulsed electrical signals excited by mechanical impacts is shown. Thus, it has been found that, at least for rocks containing crystalline quartz, such impacts excite low-frequency signals caused by the piezoelectric effect. It is also shown that upon sample destruction, radio-pulse signals are generated. It is noted that when impacted on samples of other quartz-containing rocks, similar responses are also observed, but their level is 3-10 times lower. The results obtained can be considered as some ideological premise for explaining the nature of some radiophysical precursors that are observed both directly in the earthquake preparation zone and are manifested in ionospheric processes. The description of the obtained results on studying the structure of EM emissions generated by shock and explosive impacts on large monolithic blocks of rocks of complex structure, and also at power industrial explosions is presented in Sections 1.2 and 1.3 of the book. The mechanisms of excitation of seismic emission (for various sources) and the generation of the EM response at propagation of seismic wave are considered in Sect. 1.2. The fact of generation of the EM responses at impacts on various widespread quartz-containing rocks was confirmed; it has been established that the source of the EM emission in the ELF-VLF frequency range are the inclusions of a crystalline piezoelectric excited by a seismic wave. The existence of low and high-frequency parts of the response in the lower part of the ULF range of the EM emission generated by impact, and the arising of modal structures in the high-frequency responses at impact to rocks in real conditions were detected. The proportionality of the piezoelectric response to seismic one, and an increase of the response amplitude due to the presence of an additional massive piezoelectric excited by means of a seismic wave are shown. No noticeable role of the structural destruction of the rock samples in the generation of responses was found, that gives a chance to their detection not only under hard impact (mechanical shocks, explosions), but also during natural seismic processes, that opens the perspectives for using the methods of prediction of seismic phenomena using the EM precursors of the earthquakes. The results presented in Section 1.2 are in good agreement with the results obtained in laboratory experiments (Sect. 1.1 of the book). They are an intermediate stage between laboratory research and registration of the EM responses at powerful industrial explosions. A description of the results obtained when studying the structure ...

Keywords

EM field, EM emission, piezoelectric method, radio impulse method, seismic wave, EM response, shock impact, earthquake, Rayleigh wave, near and far earthquake zones, experimental complex, theoretical estimates, laboratory experiments, field experiments, industrial explosions, ELF-VLF frequency range, spectrograms, Doppler frequency shift method, ionosphere, precursor, IGW and TID solitons

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/149794/F_Title_and_Contents__Abstract_and_Preface_of_Book__2022_1.docx.pdf?sequence=1&isAllowed=y

URL

http://www.emis.de/journals/TICMI/Int/lecturen.htm

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=258840&p_lang=2

Resource files

File name	Size (MB)	Format
F_Title_and_Contents__Abstract_and_Preface_of_Book__2022_1.docx.pdf	0,21	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belashov Vasiliy Yurevich	ru_RU
dc.contributor.author	Kharshiladze Oleg Avtandilovich	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Belashov V.Yu., Kharshiladze O.A. Display of seismic events in electro-magnetic field and ionosphere (monograph). In: Lecture Notes of TICMI, Tbilisi, Tbilisi Int. Centre of Mathematics and Informatics, 2022. 51 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=258840&p_lang=2	ru_RU
dc.description.abstract	The results of experimental and theoretical studies of the problem of manifestation of seismic events in the electromagnetic (EM) field and in the Earth's ionosphere are presented. The Section 1.1 of the book presents the results of laboratory investigations in the ULF and VLF frequency ranges with use of the experimental complex specially developed. The possibility of the occurrence of pulsed electrical signals excited by mechanical impacts is shown. Thus, it has been found that, at least for rocks containing crystalline quartz, such impacts excite low-frequency signals caused by the piezoelectric effect. It is also shown that upon sample destruction, radio-pulse signals are generated. It is noted that when impacted on samples of other quartz-containing rocks, similar responses are also observed, but their level is 3-10 times lower. The results obtained can be considered as some ideological premise for explaining the nature of some radiophysical precursors that are observed both directly in the earthquake preparation zone and are manifested in ionospheric processes. The description of the obtained results on studying the structure of EM emissions generated by shock and explosive impacts on large monolithic blocks of rocks of complex structure, and also at power industrial explosions is presented in Sections 1.2 and 1.3 of the book. The mechanisms of excitation of seismic emission (for various sources) and the generation of the EM response at propagation of seismic wave are considered in Sect. 1.2. The fact of generation of the EM responses at impacts on various widespread quartz-containing rocks was confirmed; it has been established that the source of the EM emission in the ELF-VLF frequency range are the inclusions of a crystalline piezoelectric excited by a seismic wave. The existence of low and high-frequency parts of the response in the lower part of the ULF range of the EM emission generated by impact, and the arising of modal structures in the high-frequency responses at impact to rocks in real conditions were detected. The proportionality of the piezoelectric response to seismic one, and an increase of the response amplitude due to the presence of an additional massive piezoelectric excited by means of a seismic wave are shown. No noticeable role of the structural destruction of the rock samples in the generation of responses was found, that gives a chance to their detection not only under hard impact (mechanical shocks, explosions), but also during natural seismic processes, that opens the perspectives for using the methods of prediction of seismic phenomena using the EM precursors of the earthquakes. The results presented in Section 1.2 are in good agreement with the results obtained in laboratory experiments (Sect. 1.1 of the book). They are an intermediate stage between laboratory research and registration of the EM responses at powerful industrial explosions. A description of the results obtained when studying the structure ...	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	EM field	ru_RU
dc.subject	EM emission	ru_RU
dc.subject	piezoelectric method	ru_RU
dc.subject	radio impulse method	ru_RU
dc.subject	seismic wave	ru_RU
dc.subject	EM response	ru_RU
dc.subject	shock impact	ru_RU
dc.subject	earthquake	ru_RU
dc.subject	Rayleigh wave	ru_RU
dc.subject	near and far earthquake zones	ru_RU
dc.subject	experimental complex	ru_RU
dc.subject	theoretical estimates	ru_RU
dc.subject	laboratory experiments	ru_RU
dc.subject	field experiments	ru_RU
dc.subject	industrial explosions	ru_RU
dc.subject	ELF-VLF frequency range	ru_RU
dc.subject	spectrograms	ru_RU
dc.subject	Doppler frequency shift method	ru_RU
dc.subject	ionosphere	ru_RU
dc.subject	precursor	ru_RU
dc.subject	IGW and TID solitons	ru_RU
dc.title	Display of seismic events in electro-magnetic field and ionosphere	ru_RU
dc.type	International monographs	ru_RU