Journal ArticleDOI
Current status of seismo-electromagnetics for short-term earthquake prediction
Masashi Hayakawa,Yasuhide Hobara +1 more
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In this paper, short-term (timescale of hours, days and weeks) earthquake (EQ) prediction is of essential importance to mitigate EQ disasters, which is based on seismic measurement.Abstract:
Short-term (timescale of hours, days and weeks) earthquake (EQ) prediction is of essential importance to mitigate EQ disasters. Short-term EQ prediction has so far been based on seismic measurement...read more
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A Survey of Internet of Things (IoT) for Geohazard Prevention: Applications, Technologies, and Challenges
TL;DR: The applications of the IoT in the monitoring and early warning of seven types of common geohazards, including landslides, debris flow, rockfall, surface subsidence, surface collapse, surface cracks, and earthquakes, are surveyed and the challenges are summarized.
Journal ArticleDOI
Statistical mechanics and information-theoretic perspectives on complexity in the earth system
Georgios Balasis,Reik V. Donner,Reik V. Donner,Stelios M. Potirakis,Jakob Runge,Jakob Runge,Constantinos Papadimitriou,Constantinos Papadimitriou,Ioannis A. Daglis,Ioannis A. Daglis,Konstantinos Eftaxias,Juergen Kurths +11 more
TL;DR: This review provides a summary of methods originated in (non-equilibrium) statistical mechanics and information theory, which have recently found successful applications to quantitatively studying complexity in various components of the complex system Earth.
Journal ArticleDOI
Generation of Seismic-Related DC Electric Fields and Lithosphere-Atmosphere-Ionosphere Coupling
Valery Sorokin,Masashi Hayakawa +1 more
TL;DR: In this paper, the influence of earthquake preparation processes on the ionosphere through the electric field and electric current occurring in the global atmosphere-ionosphere electric circuit is considered based on the satellite and ground-based experimental data of electric fields, plasma and electromagnetic perturbations obtained for several days before an earthquake.
Journal ArticleDOI
Pre-earthquake ionospheric anomalies before three major earthquakes by GPS-TEC and GIM-TEC data during 2015–2017
TL;DR: In this article, the authors presented different time interval of pre-seismic ionospheric anomalies, however, this study showed that EQs ionosphere precursors may occur within 10 days.
References
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Journal ArticleDOI
Decametric radiation at the time of the Hyogo‐ken Nanbu Earthquake near Kobe in 1995
Koitiro Maeda,Noritaka Tokimasa +1 more
TL;DR: In this article, radio emissions at 22.2 MHz (wavelength = 13.5 m) were detected with a radio interferometer at Nishi-harima Astronomical Observatory, located about 77 km from the epicenter, both before and after the Kobe 7.2 earthquake.
Journal ArticleDOI
Subionospheric VLF/LF monitoring of ionospheric perturbations for the 2004 Mid-Niigata earthquake and their structure and dynamics
TL;DR: In this article, a detailed spatial structure and temporal dynamics of the ionospheric perturbations associated with the huge 2004 Mid-Niigata earthquake in Japan is reported. But the authors do not consider the impact of the earthquake on the propagation of the VLF/LF subionosphere.
Journal ArticleDOI
Subionospheric vlf monitoring for earthquake-related ionospheric perturbations
Journal ArticleDOI
Possible mechanism of the over-horizon reception of FM radio waves during earthquake preparation period
TL;DR: In this paper, the authors investigated the possible underlying physical mechanism for this method within the framework of existing notions on the lithosphere-atmosphere-ionosphere coupling and suggested that conversion of large-scale gravity waves above a seismically active region into ionospheric disturbances involves formation of sporadic E-layer.
Journal ArticleDOI
Investigation of over-horizon VHF radio signals associated with earthquakes
TL;DR: The correlation between a signal anomaly and an earthquake and it seems that the over-horizon VHF signals observed are probably associated with earthquakes, observed about 7 to 0 days before an earthquake.
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O. A. Molchanov,正士 早川 +1 more