VLF/LF Radio Sounding of Ionospheric Perturbations Associated with Earthquakes

by Masashi Hayakawa
Published 2007-07-01

Possible Electromagnetic Effects on Abnormal Animal Behavior Before an Earthquake

by Masashi Hayakawa
Published 2013-01-01

On the ionospheric perturbation for the 1995 Kobe earthquake: revisited

by Masashi Hayakawa, Alexander Schekotov
Published 2016-01-01

Gravity Wave Activity in the Stratosphere before the 2011 Tohoku Earthquake as the Mechanism of Lithosphere-atmosphere-ionosphere Coupling

by Shih-Sian Yang, Masashi Hayakawa
Published 2020-01-01

Monitoring of ULF (Ultra-Low-Frequency) Geomagnetic Variations Associated with Earthquakes

by Kenji Ohta, Katsumi Hattori, Masashi Hayakawa
Published 2007-07-01

Criticality Analysis of the Lower Ionosphere Perturbations Prior to the 2016 Kumamoto (Japan) Earthquakes as Based on VLF Electromagnetic Wave Propagation Data Observed at Multiple...

by Stelios M. Potirakis, Tomokazu Asano, Masashi Hayakawa
Published 2018-03-01

Anomaly disturbances of the magnetic fields before the strong earthquake in Japan on March 11, 2011

by Masashi Hayakawa, Katsumi Hattori, Valery S. Ismaguilov, Yuri A. Kopytenko
Published 2012-04-01

Natural Time Analysis of Global Navigation Satellite System Surface Deformation: The Case of the 2016 Kumamoto Earthquakes

by Shih-Sian Yang, Stelios M. Potirakis, Sudipta Sasmal, Masashi Hayakawa
Published 2020-06-01

On the precursors to the 2011 Tohoku earthquake: crustal movements and electromagnetic signatures

by Makoto Kamiyama, Masata Sugito, Masumitsu Kuse, Alexander Schekotov, Masashi Hayakawa
Published 2016-03-01

Statistical Evaluations of Variations in Dairy Cows’ Milk Yields as a Precursor of Earthquakes

by Hiroyuki Yamauchi, Masashi Hayakawa, Tomokazu Asano, Nobuyo Ohtani, Mitsuaki Ohta
Published 2017-03-01

Preface

by Tommaso Maggipinto, Masashi Hayakawa, Michael E. Contadakis, Pier Francesco Biagi
Published 2012-04-01

Ionospheric perturbations related to the earthquake in Vrancea area on November 22, 2014, as detected by electromagnetic VLF/LF frequency signals

by Maria Solovieva, Alexander Rozhnoi, Viktor Fedun, Konrad Schwingenschuh, Masashi Hayakawa
Published 2015-11-01

The Behavior of VLF/LF Variations Associated with Geomagnetic Activity, Earthquakes, and the Quiet Condition Using a Neural Network Approach

by Irina Popova, Alexandr Rozhnoi, Maria Solovieva, Danila Chebrov, Masashi Hayakawa
Published 2018-09-01

Low frequency signal spectrum analysis for strong earthquakes

by Masashi Hayakawa, Konrad Schwingenschuh, Pier Francesco Biagi, Maria Solovieva, Alexander Rozhnoi
Published 2012-04-01

Criticality features in ultra-low frequency magnetic fields prior to the 2013 M6.3 Kobe earthquake

by Stelios M. Potirakis, Konstantinos Eftaxias, Alexander Schekotov, Hiroki Yamaguchi, Masashi Hayakawa
Published 2016-07-01

Ionospheric turbulence from ground-based and satellite VLF/LF transmitter signal observations for the Simushir earthquake (November 15, 2006)

by Pier Francesco Biagi, Masashi Hayakawa, Michel Parrot, Maria Solovieva, Alexander Rozhnoi, Konrad Schwingenschuh
Published 2012-04-01

Possible precursor to the March 11, 2011, Japan earthquake: ionospheric perturbations as seen by subionospheric very low frequency/low frequency propagation

by Jun Izutsu, Hiroki Yamaguchi, Kenji Ohta, Yoshihiro Yasuda, Yasuhide Hobara, Masashi Hayakawa, Tohru Nakamura
Published 2012-04-01

Statistical and Criticality Analysis of the Lower Ionosphere Prior to the 30 October 2020 Samos (Greece) Earthquake (M6.9), Based on VLF Electromagnetic Propagation Data as Recorde...

by Dimitrios Z. Politis, Stelios M. Potirakis, Yiannis F. Contoyiannis, Sagardweep Biswas, Sudipta Sasmal, Masashi Hayakawa
Published 2021-05-01

The Ionospheric Precursor to the 2011 March 11 Earthquake Based upon Observations Obtained from the Japan-Pacific Subionospheric VLF/LF Network

by Masashi Hayakawa, Yasuhide Hobara, Alexander Rozhnoi, Maria Solovieva, Kenji Ohta, Jun Izutsu, Tohru Nakamura, Yasushi Kasahara
Published 2013-01-01

Neural network approach to the prediction of seismic events based on low-frequency signal monitoring of the Kuril-Kamchatka and Japanese regions

by Irina Popova, Alexander Rozhnoi, Maria Solovieva, Boris Levin, Masashi Hayakawa, Yasuhide Hobara, Pier Francesco Biagi, Konrad Schwingenschuh
Published 2013-08-01