Regular paper 15 Mar 2019
Regular paper | 15 Mar 2019
Monitoring potential ionospheric changes caused by the Van earthquake (Mw7.2)
Samed Inyurt et al.
Related authors
Erman Şentürk, Samed Inyurt, and İbrahim Sertçelik
Ann. Geophys., 38, 1031–1043, https://doi.org/10.5194/angeo-38-1031-2020, https://doi.org/10.5194/angeo-38-1031-2020, 2020
Short summary
Short summary
The analysis of unexpected ionospheric phases before large earthquakes is one of the cutting-edge issues in earthquake prediction studies. Ionospheric TEC data were analyzed by short-time Fourier transform and a classic running median to detect abnormalities before the Mw 7.3 Iran–Iraq earthquake on November 12, 2017. The results showed clear positive anomalies 8–9 d before the earthquake as an earthquake precursor due to quiet space weather, local dispersion, and proximity to the epicenter.
Selcuk Peker, Samed Inyurt, and Cetin Mekik
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2018-11, https://doi.org/10.5194/angeo-2018-11, 2018
Preprint retracted
Servet Yaprak, Omer Yildirim, Tekin Susam, Samed Inyurt, and Irfan Oguz
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2018-13, https://doi.org/10.5194/nhess-2018-13, 2018
Preprint retracted
Samed Inyurt, Omer Yildirim, and Cetin Mekik
Ann. Geophys., 35, 817–824, https://doi.org/10.5194/angeo-35-817-2017, https://doi.org/10.5194/angeo-35-817-2017, 2017
Omer Yildirim, Samed Inyurt, and Cetin Mekik
Nat. Hazards Earth Syst. Sci., 16, 543–557, https://doi.org/10.5194/nhess-16-543-2016, https://doi.org/10.5194/nhess-16-543-2016, 2016
Short summary
Short summary
In this study, TEC and positional variations have been examined seperately regarding the earthquake, which occurred in the Aegean Sea. Then The correlation of the said ionospheric variation with the positional variation has been investigated; it can be said definitely that it is a seismic origin anomaly; it is believed that upper air, geophysical, and geological data are required.
Erman Şentürk, Samed Inyurt, and İbrahim Sertçelik
Ann. Geophys., 38, 1031–1043, https://doi.org/10.5194/angeo-38-1031-2020, https://doi.org/10.5194/angeo-38-1031-2020, 2020
Short summary
Short summary
The analysis of unexpected ionospheric phases before large earthquakes is one of the cutting-edge issues in earthquake prediction studies. Ionospheric TEC data were analyzed by short-time Fourier transform and a classic running median to detect abnormalities before the Mw 7.3 Iran–Iraq earthquake on November 12, 2017. The results showed clear positive anomalies 8–9 d before the earthquake as an earthquake precursor due to quiet space weather, local dispersion, and proximity to the epicenter.
Selcuk Peker, Samed Inyurt, and Cetin Mekik
Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2018-11, https://doi.org/10.5194/angeo-2018-11, 2018
Preprint retracted
Servet Yaprak, Omer Yildirim, Tekin Susam, Samed Inyurt, and Irfan Oguz
Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2018-13, https://doi.org/10.5194/nhess-2018-13, 2018
Preprint retracted
Samed Inyurt, Omer Yildirim, and Cetin Mekik
Ann. Geophys., 35, 817–824, https://doi.org/10.5194/angeo-35-817-2017, https://doi.org/10.5194/angeo-35-817-2017, 2017
Omer Yildirim, Samed Inyurt, and Cetin Mekik
Nat. Hazards Earth Syst. Sci., 16, 543–557, https://doi.org/10.5194/nhess-16-543-2016, https://doi.org/10.5194/nhess-16-543-2016, 2016
Short summary
Short summary
In this study, TEC and positional variations have been examined seperately regarding the earthquake, which occurred in the Aegean Sea. Then The correlation of the said ionospheric variation with the positional variation has been investigated; it can be said definitely that it is a seismic origin anomaly; it is believed that upper air, geophysical, and geological data are required.
Related subject area
Subject: Earth's ionosphere & aeronomy | Keywords: Midlatitude ionosphere
Solar-eclipse-induced perturbations at mid-latitude during the 21 August 2017 event
Bolarinwa J. Adekoya, Babatunde O. Adebesin, Timothy W. David, Stephen O. Ikubanni, Shola J. Adebiyi, Olawale S. Bolaji, and Victor U. Chukwuma
Ann. Geophys., 37, 171–182, https://doi.org/10.5194/angeo-37-171-2019, https://doi.org/10.5194/angeo-37-171-2019, 2019
Short summary
Short summary
We present the dynamics of perturbations during a solar eclipse using rare parameters for eclipse study. Reduction in solar radiation and natural gas heating are the cause of the observed changes. The use of the bottomside F-layer parameters to probe the topside ionosphere established their interrelationship. The implication is that eclipse-caused perturbation could be better explained using some ionosonde parameters.
Cited articles
Arikan, F., Erol, C. B., and Arikan, O.: Regularized Estimation of Vertical
Total Electron Content from GPS Data for a Desired Time Period, Radio Sci.,
39, RS6012, https://doi.org/10.1029/2004RS003061, 2004.
He, L. and Heki, K.: Ionospheric anomalies immediately before Mw 7.0–8.0
earthquakes, J. Geophys. Res.-Space, 122, 8659–8678, 2017.
He, L., Wu, L., Pulinets, S., Liu, S., and Yang, F. A.: Nonlinear background
removal method for seismo-ionospheric anomaly analysis under a complex solar
activity scenario: A case study of the M9.0 Tohoku earthquake, Adv. Space
Res., 50, 211–220, 2012.
Heki, K. and Enomoto, Y.: Mw dependence of the preseismic ionospheric
electron enhancements, J. Geophys. Res.-Space, 120, 7006–7020, 2015.
Kamogawa, M. and Kakinami, Y.: Is an ionospheric electron enhancement
preceding the 2011 Tohoku-Oki earthquake a precursor?, J. Geophys.
Res.-Space, 118, 1751–1754, 2013.
Kelley, M. C., Swartz, W. E., and Heki, K.: Apparent ionospheric total
electron content variations prior to major earthquakes due to electric fields
created by tectonic stresses, J. Geophys. Res.-Space, 122,
6689–6695, 2017.
Langley, R. B.: Monitoring the Ionosphere and Neutral Atmosphere with GPS
Division of Atmospheric and Space Physics Workshop, Frederiction, N.B., 2002.
Le, H., Liu, L., Liu, J. Y., Zhao, B., Chen, Y., and Wan, W.: The ionospheric
anomalies prior to the M9.0 Tohoku-Oki earthquake, J. Asian Earth Sci., 62,
476–484, 2013.
Li, M. and Parrot, M.: Statistical analysis of the ionospheric ion density
recorded by DEMETER in the epicenter areas of earthquakes as well as in their
magnetically conjugate point areas, Adv. Space Res., 61, 974–984, 2018.
Liu, J. Y., Chen, C. H., Chen, Y. I., Yang, W. H., Oyama, K. I., and Kuo, K.
W.: A statistical study of ionospheric earthquake precursors monitored by
using equatorial ionization anomaly of GPS TEC in Taiwan during 2001–2007,
J. Asian Earth Sci., 39, 76–80, 2010.
Masci, F., Thomas, J. N., Villani, F., Secan, J. A., and Rivera, N.: On the
onset of ionospheric precursors 40 min before strong earthquakes, J.
Geophys. Res.-Space, 120, 1383–1393, 2015.
Nwankwo, V. U. and Chakrabarti, S. K.: Effects of Plasma Drag on Low Earth
Orbiting Satellites due to Heating of Earth's Atmosphere by Coronal Mass
Ejections, arXiv preprint arXiv:1305.0233, Cornell University, ABD, 2013.
Pulinets, S. and Davidenko, D.: Ionospheric precursors of earthquakes and
global electric circuit, Adv. Space Res., 53, 709–723, 2014.
Rolland, L. M., Vergnolle, M., Nocquet, J.-M., Sladen, A., Dessa, J.-X.,
Tavakoli, F., Nankali, H. R., and Capp, F.: Discriminating the tectonic and
non-tectonic contributions in the ionospheric signature of the 2011,
Mw7.1, dip-slip Van earthquake, Eastern Turkey, Geophys. Res.
Lett., 40, 2518–2522, 2013.
Rozhnoi, A., Solovieva, M., Parrot, M., Hayakawa, M., Biagi, P. F.,
Schwingenschuh, K., and Fedun, V.: VLF/LF signal studies of the ionospheric
response to strong seismic activity in the Far Eastern region combining the
DEMETER and ground-based observations, Phys. Chem. Earth, 85, 141–149, 2015.
Schaer, S.: Société helvétique des sciences naturelles,
Commission géodésique, Mapping and predicting the Earth's ionosphere
using the Global Positioning System, Vol. 59, Institut für Geodäsie
und Photogrammetrie, Eidg. Technische Hochschule Zürich, 1999.
Şentürk, E., Livaoglu, H., and Çepni, M. S.: A Comprehensive
Analysis of Ionospheric Anomalies before Mw7.1 Van Earthquake on October 23,
2011, J. Navigation, https://doi.org/10.1017/S0373463318000826, 2018.
Thomas, J. N., Huard, J., and Masci, F.: A statistical study of global
ionospheric map total electron content changes prior to occurrences of M≥6.0 earthquakes during 2000–2014, J. Geophys. Res.-Space, 122, 2151–2161, 2017.
Ulukavak, M. and Yalcinkaya, M.: Precursor analysis of ionospheric GPS-TEC
variations before the 2010 M 7.2 Baja California earthquake, Geomatics,
Natural Hazards and Risk, 8, 295–308, 2017.
Yao, Y., Chen, P., Wu, H., Zhang, S., and Peng, W.: Analysis of ionospheric
anomalies before the 2011 Mw 9.0 Japan earthquake, Chinese Sci. Bull., 57,
500–510, 2012.
Yildirim, O., Inyurt, S., and Mekik, C.: Review of variations in Mw < 7
earthquake motions on position and TEC (Mw = 6.5 Aegean Sea earthquake
sample), Nat. Hazards Earth Syst. Sci., 16, 543–557,
https://doi.org/10.5194/nhess-16-543-2016, 2016.