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Comment on Fractal Analysis of Ulf Electromagnetic Emissions in Possible Association with Earthquakes in China by Ida Et Al. (2012) : Volume 20, Issue 3 (24/06/2013)

By Masci, F.

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Book Id: WPLBN0003989395
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File Size: Pages 5
Reproduction Date: 2015

Title: Comment on Fractal Analysis of Ulf Electromagnetic Emissions in Possible Association with Earthquakes in China by Ida Et Al. (2012) : Volume 20, Issue 3 (24/06/2013)  
Author: Masci, F.
Volume: Vol. 20, Issue 3
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Thomas, J. N., & Masci, F. (2013). Comment on Fractal Analysis of Ulf Electromagnetic Emissions in Possible Association with Earthquakes in China by Ida Et Al. (2012) : Volume 20, Issue 3 (24/06/2013). Retrieved from http://hawaiilibrary.net/


Description
Description: Istituto Nazionale di Geofisica e Vulcanologia, L'Aquila, Italy. Ida et al. (2012) identified anomalous decreases in the fractal dimension of the vertical (Z) component of the geomagnetic field, which they interpreted as precursors to the China earthquake of 1 September 2003. According to Ida et al. (2012), short-term earthquake prediction seems to be possible only by using electromagnetic phenomena. Here, it is shown that the decreases of the fractal dimension documented by Ida et al. (2012) are not really anomalous, but they are part of the normal geomagnetic activity driven by solar–terrestrial interactions. As a consequence, these fractal dimension decreases are not related to the 1 September 2003 earthquake.

Summary
Comment on Fractal analysis of ULF electromagnetic emissions in possible association with earthquakes in China by Ida et al. (2012)

Excerpt
Balasis, G., Daglis, I. A., Papadimitriou, C., Kalimeri, M., Anastasiadis, A., and Eftaxias, K.: Investigating dynamical complexity in the magnetosphere using various entropy measures, J. Geophys. Res., 114, A00D06, doi:10.1029/2008JA014035, 2009.; Campbell, W. H.: Natural magnetic disturbance fields, not precursors, preceding the Loma Prieta earthquake, J. Geophys. Res., 114, A05307, doi:10.1029/2008JA013932, 2009.; Füllekrug, M. and Fraser-Smith, A. C.: The Earth's electromagnetic environment, Geophys. Res. Lett., 38, L21807, doi:10.1029/2011GL049572, 2011.; Higuchi, T.: Approach to an irregular time on the basis of fractal theory, Physica D, 31, 277–283, 1988.; Ida, Y., Yang, D., Li, Q., Sun, H., and Hayakawa, M.: Detection of ULF electromagnetic emissions as a precursor to an earthquake in China with an improved polarization analysis, Nat. Hazards Earth Syst. Sci., 8, 775–777, doi:10.5194/nhess-8-775-2008, 2008.; Ida, Y., Yang, D., Li, Q., Sun, H., and Hayakawa, M.: Fractal analysis of ULF electromagnetic emissions in possible association with earthquakes in China, Nonlin. Processes Geophys., 19, 577–583, doi:10.5194/npg-19-577-2012, 2012.; Masci, F.: On claimed ULF seismogenic fractal signatures in the geomagnetic field, J. Geophys. Res., 115, A10236, doi:10.1029/2010JA015311, 2010.; Masci, F.: On the seismogenic increase of the ratio of the ULF geomagnetic field components. Phys. Earth Planet. Int., 187, 19–32, doi:10.1016/j.pepi.2011.05.001, 2011.; Masci, F.: Comment on Ultra Low Frequency (ULF) European multi station magnetic field analysis before and during the 2009 earthquake at L'Aquila regarding regional geotechnical information by Prattes et al. (2011), Nat. Hazards Earth Syst. Sci., 12, 1717–1719, doi:10.5194/nhess-12-1717-2012, 2012a.; Masci, F.: On the ULF magnetic ratio increase before the 2008 Iwate-Miyagi Nairiku earthquake by Hirano and Hattori (2011), J. Asian Earth Sci., 56, 258–262, doi:10.1016/j.jseaes.2012.05.020, 2012b.; Masci, F.: The study of ionospheric anomalies in Japan area during 1998–2010 by Kon et al.: An inaccurate claim of earthquake-related signatures?, J. Asian Earth Sci., 57, 1–5, doi:10.1016/j.jseaes.2012.06.009, 2012c.; Masci, F.: On the multi-fractal characteristics of the ULF geomagnetic field before the 1993 Guam earthquake, Nat. Hazards Earth Syst. Sci., 13, 187–191, doi:10.5194/nhess-13-187-2013, 2013.; Masci, F. and Di Persio, M.: Retrospective investigation of geomagnetic field time-series during the 2009 L'Aquila seismic sequence, Tectonophysics, 530–531, 310–317, doi:10.1016/j.tecto.2012.01.008, 2012.; Moldovan, I. A., Placinta, A. O., Constantin, A. P., Adrian Septimiu Moldovan, A. S., and Ionescu, C.: Correlation of geomagnetic anomalies recorded at Muntele Rosu Seismic Observatory (Romania) with earthquake occurrence and solar magnetic storms, Ann. Geophys., 55, 125–137, doi:10.4401/ag-5367, 2012.; Telesca, L., Cuomo, V., Lapenna, V., Macchiato, M., and Serio, C.: Detecting Stochastic Behaviour and Scaling Laws in Time Series of Geomagnetic Daily Means, Pure Appl. Geophys., 156, 487–501,

 

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