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Volume 17, issue 9 | Copyright
Nat. Hazards Earth Syst. Sci., 17, 1461-1468, 2017
https://doi.org/10.5194/nhess-17-1461-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 06 Sep 2017

Research article | 06 Sep 2017

On a reported effect in ionospheric TEC around the time of the 6 April 2009 L'Aquila earthquake

Fabrizio Masci et al.
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Cited articles
Afraimovich, E. L. and Astafyeva, E. I.: TEC anomalies – local TEC changes prior to earthquakes or TEC response to solar and geomagnetic activity changes?, Earth Planets Space, 60, 961–966, https://doi.org/10.1186/BF03352851, 2008.
Afraimovich, E. L., Astafyeva, E. I., Gokhberg, M. B., Lapshin, V. M., Permyakova, V. E., Steblov, G. M., and Shalimov, S. L.: Variations of the total electron content in the ionosphere from GPS data recorded during the Hector Mine earthquake of October 16, 1999, California, Russian Journal of Earth Sciences, 6, 339–354, https://doi.org/10.2205/2004ES000155, 2004.
Agenzia Spaziale Italiana: RINEX-format GPS files, ftp://geodaf.mt.asi.it/GEOD/GPSD/RINEX/2009/ (last access: 26 October 2016), 2012.
Astafyeva, E. and Heki, K.: Vertical TEC over seismically active region during low solar activity, J. Atmos. Sol.-Terr. Phy., 73, 1643–1652, https://doi.org/10.1016/j.jastp.2011.02.020, 2011.
Astafyeva, E., Shalimov, S., Olshanskaya, E., and Lognonné, P.: Ionospheric response to earthquakes of different magnitudes: Larger quakes perturb the ionosphere stronger and longer, Geophys. Res. Lett., 40, 1675–1681, https://doi.org/10.1002/grl.50398, 2013.
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In a recent paper, the authors report the analysis of ionospheric TEC data from GPS measurements around the time of the 6 April 2009 L'Aquila earthquake. According to them, an anomalous change in TEC difference from two GPS receivers in central Italy may be explained as related to the earthquake. We have conducted our own independent analysis using the same GPS data. We have shown that in TEC difference there is no evidence of actual seismogenic effects close to the time of L'Aquila earthquake.
In a recent paper, the authors report the analysis of ionospheric TEC data from GPS measurements...
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