Determination of the relationship between radon anomalies and earthquakes in well waters on the Aksehir-Simav Fault System in Afyonkarahisar province, Turkey

YALIM H. A., Sandikcioglu A., ERTUĞRUL O., YILDIZ A.

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, cilt.110, ss.7-12, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 110
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jenvrad.2012.01.015
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.7-12
  • Anahtar Kelimeler: Well water, Radon anomaly, Earthquake magnitude, Afyonkarahisar, SOIL-GAS RADON, GROUNDWATER RADON, GARHWAL-HIMALAYA, POSSIBLE PRECURSOR, THERMAL WATERS, WESTERN TURKEY, PHYSICAL BASIS, PREDICTION, DEFORMATION, INDIA
  • Anadolu Üniversitesi Adresli: Evet

Özet

Radon concentrations were measured in water of 4 wells on the Aksehir-Simav Fault System (ASFS) in Afyonkarahisar province from August 2009 to September 2010 and the relationship between radon anomalies and earthquake magnitudes was examined. Anomalous decreases in radon concentrations in the wells were observed to precede the earthquakes of magnitudes ranging from 2.6 M to 3.9 M. The correlation coefficients (R-2) were 0.79, 0.93, 0.98 and 0.90 for the wells from 1 to 4, respectively, indicating that radon minima and earthquake magnitude were well correlated and suggesting that the groundwater radon, when observed at suitable sites, can be a sensitive tracer for strain changes in crust associated with earthquake occurrences. The relationship between the two parameters can be further improved as additional radon anomalies precursor to possible large earthquakes are recorded in the wells located on the ASFS in the future. This study strongly suggests that the continuous observations of radon concentrations in well water, especially at well 3, should be carried forward. (C) 2012 Elsevier Ltd. All rights reserved.