The present consolidated paper represents the VLF/LF (very low frequency/low frequency) electromagnetic radiation as the earthquake’s true precursor. The search is mainly carried out on the basis of a theoretical mod...The present consolidated paper represents the VLF/LF (very low frequency/low frequency) electromagnetic radiation as the earthquake’s true precursor. The search is mainly carried out on the basis of a theoretical model of the generation of electromagnetic emissions during the earthquake preparation period and earthquake prediction methodology. It is shown that this parameter is capable of describing the fault formative process in the focal area. Besides, VLF/LF electromagnetic radiation frequency analysis gives the possibility simultaneously to determine all necessary three characteristic parameters (magnitude, epicenter, time of occurring) for incoming earthquake prediction with great precision.展开更多
It is widely known that very low frequency/low frequency(VLF/LF)radiation has been recorded prior to large earthquakes in several seismically active countries of the world.The networks employed to detect this radiatio...It is widely known that very low frequency/low frequency(VLF/LF)radiation has been recorded prior to large earthquakes in several seismically active countries of the world.The networks employed to detect this radiation consist of stationary transmitters and receivers.However,there are reported cases of existing networks being unable to detect any electromagnetic radiation prior to large earthquakes.In this study,we determined the optimal arrangement of a mobile VLF/LF electromagnetic radiation network to ensure the detection of an upcoming earthquake precursor.We considered the possible arrangements of the VLF/LF mobile network based on certain physical considerations,and developed a relatively simple arrangement that is completely different from the existing stationary networks.The suggested design will significantly increase the number of detected/predicted earthquakes by using the relevant electromagnetic radiation receivers strategically placed in regions of increased tectonic and seismic activity.展开更多
This work is an attempt to critically analyze the existing theoretical models of the impact of earthquake preparation processes on the state of the earth’s atmosphere and ionosphere in the zone of growing seismic act...This work is an attempt to critically analyze the existing theoretical models of the impact of earthquake preparation processes on the state of the earth’s atmosphere and ionosphere in the zone of growing seismic activity, as well as the mechanisms of formation and transfer of disturbances in various media over the earthquake center. The determining factor (criterion) of the analysis is the degree of compliance of the simulation results with experimental data obtained at various phases of earthquake development by direct and remote diagnostic methods using ground and aerospace technologies. The key role is played by the model’s compliance with the results of measuring electric fields and currents in the near-ground atmosphere and ionosphere, small-scale ionospheric inhomogeneities and correlated field-aligned currents and electromagnetic ULF/ELF emissions. A full-fledged model should also explain the origin of such seismic related phenomena as the generation in the troposphere and over-horizon propagation of pulsed VHF radiation, thermal effects and associated IR emissions as well as the modification of plasma distribution in the D, E and F layers of the ionosphere. The use of this criterion in the analysis allowed us to identify a theoretical model that most fully describes the totality of the above-mentioned experimental data within a single physical mechanism. This is an electrodynamic model based on the perturbation of the conductivity current in the global atmosphere—ionosphere electric circuit due to the injection of charged aerosols into the atmosphere during the preparation and development of an earthquake. The present paper describes this model and the formation mechanisms of related phenomena in the atmosphere and ionosphere, which can be considered as short-term precursors to earthquakes.展开更多
文摘The present consolidated paper represents the VLF/LF (very low frequency/low frequency) electromagnetic radiation as the earthquake’s true precursor. The search is mainly carried out on the basis of a theoretical model of the generation of electromagnetic emissions during the earthquake preparation period and earthquake prediction methodology. It is shown that this parameter is capable of describing the fault formative process in the focal area. Besides, VLF/LF electromagnetic radiation frequency analysis gives the possibility simultaneously to determine all necessary three characteristic parameters (magnitude, epicenter, time of occurring) for incoming earthquake prediction with great precision.
基金the Shota Rustaveli National Science Foundation of Georgia(grant DI/21/9-140/13)the PROMONTEC(CGL2017-84720-R AEI/FEDER,UE)project,which is financed by the Spanish Ministry of Economy,Industry and Competitiveness(MINEICO).
文摘It is widely known that very low frequency/low frequency(VLF/LF)radiation has been recorded prior to large earthquakes in several seismically active countries of the world.The networks employed to detect this radiation consist of stationary transmitters and receivers.However,there are reported cases of existing networks being unable to detect any electromagnetic radiation prior to large earthquakes.In this study,we determined the optimal arrangement of a mobile VLF/LF electromagnetic radiation network to ensure the detection of an upcoming earthquake precursor.We considered the possible arrangements of the VLF/LF mobile network based on certain physical considerations,and developed a relatively simple arrangement that is completely different from the existing stationary networks.The suggested design will significantly increase the number of detected/predicted earthquakes by using the relevant electromagnetic radiation receivers strategically placed in regions of increased tectonic and seismic activity.
文摘This work is an attempt to critically analyze the existing theoretical models of the impact of earthquake preparation processes on the state of the earth’s atmosphere and ionosphere in the zone of growing seismic activity, as well as the mechanisms of formation and transfer of disturbances in various media over the earthquake center. The determining factor (criterion) of the analysis is the degree of compliance of the simulation results with experimental data obtained at various phases of earthquake development by direct and remote diagnostic methods using ground and aerospace technologies. The key role is played by the model’s compliance with the results of measuring electric fields and currents in the near-ground atmosphere and ionosphere, small-scale ionospheric inhomogeneities and correlated field-aligned currents and electromagnetic ULF/ELF emissions. A full-fledged model should also explain the origin of such seismic related phenomena as the generation in the troposphere and over-horizon propagation of pulsed VHF radiation, thermal effects and associated IR emissions as well as the modification of plasma distribution in the D, E and F layers of the ionosphere. The use of this criterion in the analysis allowed us to identify a theoretical model that most fully describes the totality of the above-mentioned experimental data within a single physical mechanism. This is an electrodynamic model based on the perturbation of the conductivity current in the global atmosphere—ionosphere electric circuit due to the injection of charged aerosols into the atmosphere during the preparation and development of an earthquake. The present paper describes this model and the formation mechanisms of related phenomena in the atmosphere and ionosphere, which can be considered as short-term precursors to earthquakes.
