Arabian Journal of Geosciences

, Volume 8, Issue 7, pp 5239–5246 | Cite as

Time-series analysis of water and soil radon anomalies to identify micro–macro-earthquakes

  • Fatih Külahcı
  • Şerif Çiçek
Original Paper


Soil and water 222Rn gas concentrations were observed over 8 months on a branch of the East Anatolian Fault Zone (EAFZ), which is one of the world’s most seismically active areas. During such observations, 110 micro- and macro-earthquakes were recorded. The largest earthquake was the ML 5.4 İçme earthquake that occurred on 23 June 2011. Twenty days before this earthquake, anomalous increases were recorded in soil and water 222Rn gas as a time-series. The 222Rn anomalies recorded in the research area were likely precursors to the İçme earthquake. A few days before the earthquake, the soil and water 222Rn gas concentrations increased by approximately 70–99 %. Consequently, strong evidence suggests that the radon anomaly originated due to stress accumulation preceding the İçme earthquake.


Radon Precursor Micro-earthquake Trend analysis Time-series Prediction 



The authors would like to thank KOERI (Boğaziçi University, Kandilli Observatory and Earthquake Research Institute, Turkey) for the earthquake data and the local community (approximately 12 people) for the significant aid with the difficult field studies herein.


  1. Atkinson BK (1982) Subcritical crack propagation in rocks: theory, experimental results and applications. J Struct Geol 4:41–56CrossRefGoogle Scholar
  2. Bichard GF, Libby WF (1980) Soil radon concentration changes preceding and following four magnitude 4.2–4.7 earthquakes on the San Jacinto Fault in Southern California. J Geophys Res 85:3100–3106CrossRefGoogle Scholar
  3. Bochiolo M, Verdoya M, Chiozzi P, Pasquale V (2012) Radiometric surveying for the assessment of radiation dose and radon specific exhalation in underground environment. J Appl Geophys 83:100–106CrossRefGoogle Scholar
  4. Çolak S, Aksoy E, Koçyiğit A, İnceöz M (2011) The Palu-Uluova strike-slip basin in the East Anatolian Fault System, Turkey: its transition from the palaeotectonic to neotectonic stage. Turk J Earth Sci 21:547–570Google Scholar
  5. Doğru M, Külahcı F (2004) Iso-radioactivity curves of the water of the Hazar Lake, Elazig, Turkey. J Radioanal Nucl Chem 260:557–562CrossRefGoogle Scholar
  6. Fu CC, Yang TF, Walia V, Liu TK, Lin SJ, Chen CH, Hou CS (2009) Variations of soil-gas composition around the active Chihshang Fault in a plate suture zone, eastern Taiwan. Radiat Meas 44:940–944CrossRefGoogle Scholar
  7. Ghosh D, Deb A, Sengupta R (2009) Anomalous radon emission as precursor of earthquake. J Appl Geophys 69:67–81CrossRefGoogle Scholar
  8. Khan HA, Qureshi AA (1994) Solid state nuclear track detection: a useful geological/geophysical tool. Nucl Geophys 8:1–37Google Scholar
  9. King CY (1978) Radon emanation on San Andreas Fault. Nature 271:516–519CrossRefGoogle Scholar
  10. Külahcı F, Şen Z (2014) On the correction of spatial and statistical uncertainties in systematic measurements of 222Rn for earthquake prediction. Surv Geophys 35:449–478CrossRefGoogle Scholar
  11. Külahcı F, Özer AB, Doğru M (2006) Prediction of the radioactivity in Hazar Lake by Artificial Neural Networks. J Radioanal Nucl Chem 269:63–68CrossRefGoogle Scholar
  12. Külahcı F, İnceöz M, Doğru M, Aksoy E, Baykara O (2009) Artificial neural network model for earthquake prediction with radon monitoring. Appl Radiat Isot 67:212–219CrossRefGoogle Scholar
  13. Kumar A, Walia V, Singh S, Bajwa BS, Mahajan S, Dhar S, Yang TF (2012) Earthquake precursory studies at Amritsar Punjab, India using radon measurement techniques. Int J Phys Sci 7:5669–5677Google Scholar
  14. Nadezhda KR (2012) Parameters of modeling radon transfer through soil and methods of their determination. J Appl Geophys 80:151–157CrossRefGoogle Scholar
  15. Papastefanou C (2007) Measuring radon in soil gas and groundwaters: a review. Ann Geophys 50:569–570Google Scholar
  16. Porsani JL, Elis VR, Hiodo FY (2005) Geophysical investigations for the characterization of fractured rock aquifers in Itu, SE Brazil. J Appl Geophys 57:119–128CrossRefGoogle Scholar
  17. Pylon (2013) Pylon electronic. Accessed 15 January 2014
  18. Richon P, Sabroux JC, Halbwachs M, Vandemeulebrouck J, Poussielgue N, Tabbagh J, Punongbayan R (2003) Radon anomaly in the soil of Taal volcano, the Philippines: a likely precursor of the M 7.1 Mindoro earthquake. Geophys Res Lett 30:1481CrossRefGoogle Scholar
  19. Rikitake T (1976) Earthquake prediction. Elsevier, AmsterdamGoogle Scholar
  20. Schütze C, Vienken T, Werban U, Dietrich P, Finizola A, Leven C (2012) Joint application of geophysical methods and direct push-soil gas surveys for the improved delineation of buried fault zones. J Appl Geophys 82:129–136CrossRefGoogle Scholar
  21. Segovia N, Mena M, Pena P, Tamez E, Seidel JL, Monnin M, Valdes C (1999) Soil radon time series: surveys in seismic and volcanic areas. Radiat Meas 31:307–312CrossRefGoogle Scholar
  22. Seidel JL, Monnin M (1998) An automatic radon probe for earth science studies. J Appl Geophys 39:209–220CrossRefGoogle Scholar
  23. Singh M, Kumar M, Jain RK, Chatrath RP (1999) Radon in ground water related to seismic event. Radiat Meas 30:465–469CrossRefGoogle Scholar
  24. Steinitz G, Begin ZB, Gazit-Yaari N (2003) Statistically significant relation between radon flux and weak earthquakes in the Dead Sea rift valley. Geology 31:505–508CrossRefGoogle Scholar
  25. Ulomov VI, Mavashev BZ (1967) On forerunners of strong tectonic earthquakes. Dokl Akad Nauk SSSR 176:319–322Google Scholar
  26. Ulomov VI, Zakharova AI, Ulomova NV (1967) Tashkent earthquake of April 26, 1966 and its aftershocks. Dokl Akad Nauk SSSR 177:567–570Google Scholar
  27. Vinas R, Eff-Darwich A, Soler V, Martín-Luis MC, Quesada ML, De La Nuez J (2007) Processing of radon time series in underground environments: implications for volcanic surveillance in the island of Tenerife, Canary Islands. Spain Radiat Meas 42:101–115CrossRefGoogle Scholar
  28. Virk HS, Walia V (2001) Helium/Radon precursory signals of Charmoli earthquake. India Radiat Meas 34:379–384CrossRefGoogle Scholar
  29. Wakita H, Nakamura Y, Sano Y (1998) Short-term and intermediate-term geochemical precursors. Pure Appl Geophys 126:267–278CrossRefGoogle Scholar
  30. Worthy DEJ, Trivett NBA, Hopper JF (1994) Analysis of long-range transport events at alert, northwest-territories during the polar sunrise experiment. J Geophys Res Atmos 99:25329–25344CrossRefGoogle Scholar
  31. Zmazek B, Zivcic M, Vaupotic J, Bidovec M, Poljak M, Kobal I (2002) Soil radon monitoring in the Krsko Basin. Slov Appl Radiat Isot 56:649–657CrossRefGoogle Scholar

Copyright information

© Saudi Society for Geosciences 2014

Authors and Affiliations

  1. 1.Nuclear Physics Division, Department of Physics, Faculty of ScienceFırat UniversityElazigTurkey

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