Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake

Dragos Armand Stanica; Dumitru Stanica; Nicoleta Vladimirescu

doi:doi:10.11648/j.earth.20150401.13

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Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake

Dragos Armand Stanica, Dumitru Stanica, Nicoleta Vladimirescu

Published in Earth Sciences (Volume 4, Issue 1)

Received: 7 January 2015 Accepted: 14 January 2015 Published: 26 January 2015

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Abstract

It is supposed that prior to a large earthquake its focus may send through the Earth lithosphere a long-range effect of strain-related to transient electric signals, which in turn give rise to geomagnetic variations propagated over a wide range of frequencies. Consequently, to confirm long-range electromagnetic anomalous effect related to the M9 Great Tohoku earthquake occurred on 11 March 2011, we retrospectively analyzed the geomagnetic data collected at three observatories placed in Japan (Memambetsu, Kakioka) and Romania (Provita de Sus). The daily mean distributions of the normalized function Bzn and its standard deviation (STDEV) for all the three observatories are performed in the ultra-low frequency range (0.001-0.016Hz) by using the FFT band-pass filter analysis. Additionally, a comparative statistical analysis, based on a standardized random variable equation, was applied to the Bzn time series to emphasize a possible pre-seismic anomalous interval and, consequently, a peak greater than 2.5∙STDEV, related to the M9 Tohoku earthquake, was identified on 5-6 February 2011. The lead time was 32 days before the earthquake occurrence. The final conclusion is that the detection area of the pre-seismic electromagnetic effect could be extended to the considerable distances from the epicenter of a giant earthquake.

Published in	Earth Sciences (Volume 4, Issue 1)
DOI	10.11648/j.earth.20150401.13
Page(s)	31-38
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Pre-Seismic Anomalous Bzn, Crustal Electrical Conductivity Changes, M9 Tohoku Earthquake

References

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APA Style

Dragos Armand Stanica, Dumitru Stanica, Nicoleta Vladimirescu. (2015). Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sciences, 4(1), 31-38. https://doi.org/10.11648/j.earth.20150401.13

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ACS Style

Dragos Armand Stanica; Dumitru Stanica; Nicoleta Vladimirescu. Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sci. 2015, 4(1), 31-38. doi: 10.11648/j.earth.20150401.13

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AMA Style

Dragos Armand Stanica, Dumitru Stanica, Nicoleta Vladimirescu. Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sci. 2015;4(1):31-38. doi: 10.11648/j.earth.20150401.13

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@article{10.11648/j.earth.20150401.13,
  author = {Dragos Armand Stanica and Dumitru Stanica and Nicoleta Vladimirescu},
  title = {Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake},
  journal = {Earth Sciences},
  volume = {4},
  number = {1},
  pages = {31-38},
  doi = {10.11648/j.earth.20150401.13},
  url = {https://doi.org/10.11648/j.earth.20150401.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150401.13},
  abstract = {It is supposed that prior to a large earthquake its focus may send through the Earth lithosphere a long-range effect of strain-related to transient electric signals, which in turn give rise to geomagnetic variations propagated over a wide range of frequencies. Consequently, to confirm long-range electromagnetic anomalous effect related to the M9 Great Tohoku earthquake occurred on 11 March 2011, we retrospectively analyzed the geomagnetic data collected at three observatories placed in Japan (Memambetsu, Kakioka) and Romania (Provita de Sus). The daily mean distributions of the normalized function Bzn and its standard deviation (STDEV) for all the three observatories are performed in the ultra-low frequency range (0.001-0.016Hz) by using the FFT band-pass filter analysis. Additionally, a comparative statistical analysis, based on a standardized random variable equation, was applied to the Bzn time series to emphasize a possible pre-seismic anomalous interval and, consequently, a peak greater than 2.5∙STDEV, related to the M9 Tohoku earthquake, was identified on 5-6 February 2011. The lead time was 32 days before the earthquake occurrence. The final conclusion is that the detection area of the pre-seismic electromagnetic effect could be extended to the considerable distances from the epicenter of a giant earthquake.},
 year = {2015}
}

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TY  - JOUR
T1  - Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake
AU  - Dragos Armand Stanica
AU  - Dumitru Stanica
AU  - Nicoleta Vladimirescu
Y1  - 2015/01/26
PY  - 2015
N1  - https://doi.org/10.11648/j.earth.20150401.13
DO  - 10.11648/j.earth.20150401.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 31
EP  - 38
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20150401.13
AB  - It is supposed that prior to a large earthquake its focus may send through the Earth lithosphere a long-range effect of strain-related to transient electric signals, which in turn give rise to geomagnetic variations propagated over a wide range of frequencies. Consequently, to confirm long-range electromagnetic anomalous effect related to the M9 Great Tohoku earthquake occurred on 11 March 2011, we retrospectively analyzed the geomagnetic data collected at three observatories placed in Japan (Memambetsu, Kakioka) and Romania (Provita de Sus). The daily mean distributions of the normalized function Bzn and its standard deviation (STDEV) for all the three observatories are performed in the ultra-low frequency range (0.001-0.016Hz) by using the FFT band-pass filter analysis. Additionally, a comparative statistical analysis, based on a standardized random variable equation, was applied to the Bzn time series to emphasize a possible pre-seismic anomalous interval and, consequently, a peak greater than 2.5∙STDEV, related to the M9 Tohoku earthquake, was identified on 5-6 February 2011. The lead time was 32 days before the earthquake occurrence. The final conclusion is that the detection area of the pre-seismic electromagnetic effect could be extended to the considerable distances from the epicenter of a giant earthquake.
VL  - 4
IS  - 1
ER  -

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Author Information

Dragos Armand Stanica

Department of Electromagnetism and Lithosphere Dynamics, Institute of Geodynamics of the Romanian Academy, Bucharest, Romania
Dumitru Stanica

Department of Electromagnetism and Lithosphere Dynamics, Institute of Geodynamics of the Romanian Academy, Bucharest, Romania
Nicoleta Vladimirescu

Department of Electromagnetism and Lithosphere Dynamics, Institute of Geodynamics of the Romanian Academy, Bucharest, Romania

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Plain Text BibTeX RIS

APA Style

Dragos Armand Stanica, Dumitru Stanica, Nicoleta Vladimirescu. (2015). Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sciences, 4(1), 31-38. https://doi.org/10.11648/j.earth.20150401.13

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ACS Style

Dragos Armand Stanica; Dumitru Stanica; Nicoleta Vladimirescu. Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sci. 2015, 4(1), 31-38. doi: 10.11648/j.earth.20150401.13

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AMA Style

Dragos Armand Stanica, Dumitru Stanica, Nicoleta Vladimirescu. Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake. Earth Sci. 2015;4(1):31-38. doi: 10.11648/j.earth.20150401.13

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@article{10.11648/j.earth.20150401.13,
  author = {Dragos Armand Stanica and Dumitru Stanica and Nicoleta Vladimirescu},
  title = {Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake},
  journal = {Earth Sciences},
  volume = {4},
  number = {1},
  pages = {31-38},
  doi = {10.11648/j.earth.20150401.13},
  url = {https://doi.org/10.11648/j.earth.20150401.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150401.13},
  abstract = {It is supposed that prior to a large earthquake its focus may send through the Earth lithosphere a long-range effect of strain-related to transient electric signals, which in turn give rise to geomagnetic variations propagated over a wide range of frequencies. Consequently, to confirm long-range electromagnetic anomalous effect related to the M9 Great Tohoku earthquake occurred on 11 March 2011, we retrospectively analyzed the geomagnetic data collected at three observatories placed in Japan (Memambetsu, Kakioka) and Romania (Provita de Sus). The daily mean distributions of the normalized function Bzn and its standard deviation (STDEV) for all the three observatories are performed in the ultra-low frequency range (0.001-0.016Hz) by using the FFT band-pass filter analysis. Additionally, a comparative statistical analysis, based on a standardized random variable equation, was applied to the Bzn time series to emphasize a possible pre-seismic anomalous interval and, consequently, a peak greater than 2.5∙STDEV, related to the M9 Tohoku earthquake, was identified on 5-6 February 2011. The lead time was 32 days before the earthquake occurrence. The final conclusion is that the detection area of the pre-seismic electromagnetic effect could be extended to the considerable distances from the epicenter of a giant earthquake.},
 year = {2015}
}

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TY  - JOUR
T1  - Long-Range Anomalous Electromagnetic Effect Related to M9 Great Tohoku Earthquake
AU  - Dragos Armand Stanica
AU  - Dumitru Stanica
AU  - Nicoleta Vladimirescu
Y1  - 2015/01/26
PY  - 2015
N1  - https://doi.org/10.11648/j.earth.20150401.13
DO  - 10.11648/j.earth.20150401.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 31
EP  - 38
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20150401.13
AB  - It is supposed that prior to a large earthquake its focus may send through the Earth lithosphere a long-range effect of strain-related to transient electric signals, which in turn give rise to geomagnetic variations propagated over a wide range of frequencies. Consequently, to confirm long-range electromagnetic anomalous effect related to the M9 Great Tohoku earthquake occurred on 11 March 2011, we retrospectively analyzed the geomagnetic data collected at three observatories placed in Japan (Memambetsu, Kakioka) and Romania (Provita de Sus). The daily mean distributions of the normalized function Bzn and its standard deviation (STDEV) for all the three observatories are performed in the ultra-low frequency range (0.001-0.016Hz) by using the FFT band-pass filter analysis. Additionally, a comparative statistical analysis, based on a standardized random variable equation, was applied to the Bzn time series to emphasize a possible pre-seismic anomalous interval and, consequently, a peak greater than 2.5∙STDEV, related to the M9 Tohoku earthquake, was identified on 5-6 February 2011. The lead time was 32 days before the earthquake occurrence. The final conclusion is that the detection area of the pre-seismic electromagnetic effect could be extended to the considerable distances from the epicenter of a giant earthquake.
VL  - 4
IS  - 1
ER  -

Copy | Download