Natural Hazards

, Volume 62, Issue 2, pp 575–591 | Cite as

Seasonal variations in soil radon emanation: long-term continuous monitoring in light of seismicity

  • Sedat İnanEmail author
  • Alican Kop
  • Hasan Çetin
  • Furkan Kulak
  • Zümer Pabuçcu
  • Cemil Seyis
  • Semih Ergintav
  • Onur Tan
  • Ruhi Saatçılar
  • M. Nuri Bodur
Original Paper


Soil gas radon release patterns have been monitored continuously for more than 3 years in the Eastern Mediterranean Province (EMP) (Southern Turkey), alongside regional seismic events, providing a multidisciplinary approach. In the period from January 2008 to January 2011, 14 earthquakes M L ≥4 occurred in the study area. By monitoring the sites for more than 3 years, the site-characteristic patterns of soil radon emanation of each site have become evident. Radon emanation data show seasonal (semi-annual) variation characteristics; high soil radon values are between May and October and low soil radon values are between November and April. With available rainfall data, the soil gas radon data can be more reliably evaluated. It is shown in this paper that if radon emanation data are available over sufficiently long periods of time and baseline data (and their seasonal variations) are known with certainty for each monitoring site, then the observation of positive anomalies might provide a correlation or connection to seismic activity.


Southern Turkey East Anatolian Fault system Dead Sea Fault system East Mediterranean Province Continuous monitoring Soil radon Meteorological effects Semi-annual variations Earthquake precursor 



The authors acknowledge the financial support received from the TUBITAK TARAL 1007 Program for the TÜRDEP Project (Project No: 105G019). We appreciate all the technical help and support we have received from our colleagues at the TUBITAK Marmara Research Center Earth and Marine Sciences Institute. Special thanks go to Bora Erkan for the production of the figures. Finally, we thank three anonymous reviewers for their constructive reviews and suggestions that improved the manuscript. We acknowledge the promptness and the high quality of the work of the editorial office of the NHAZ.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Sedat İnan
    • 1
    Email author
  • Alican Kop
    • 2
  • Hasan Çetin
    • 3
  • Furkan Kulak
    • 1
  • Zümer Pabuçcu
    • 1
  • Cemil Seyis
    • 1
  • Semih Ergintav
    • 1
  • Onur Tan
    • 1
  • Ruhi Saatçılar
    • 1
  • M. Nuri Bodur
    • 4
  1. 1.TÜBİTAK Marmara Research CenterEarth and Marine Sciences InstituteGebzeTurkey
  2. 2.Department of Geological EngineeringKahramanmaraş Sütçü İmam UniversityKahramanmarasTurkey
  3. 3.Department of Geological EngineeringÇukurova UniversityAdanaTurkey
  4. 4.Faculty of Engineering and ArchitectureHakkari UniversityHakkariTurkey

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