Observations on the stress related variations of soil radon concentration in the Gulf of Corinth, Greece

Our observations indicate a characteristic pattern in the long-term variation of soil radon concentrations, which seems to be consistent with the expected variation of regional stress in relation to seismicity. However, it seems that the major changes in radon level begin before the rock rapture, i....

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Published in:Scientific reports 2022-03, Vol.12 (1), p.5442-5442, Article 5442
Main Authors: Karastathis, Vassilios K., Eleftheriou, George, Kafatos, Menas, Tsinganos, Kanaris, Tselentis, G-Akis, Mouzakiotis, Evangelos, Ouzounov, Dimitar
Format: Article
Language:English
Subjects:
704/2151
704/4111
Earth Sciences
Earthquakes
Gamma rays
Greece
Hot springs
Humanities and Social Sciences
multidisciplinary
Radiation Monitoring
Radon
Radon - analysis
Science
Science (multidisciplinary)
Sciences of the Universe
Seismic activity
Soil
Soil Pollutants, Radioactive - analysis
Variation
γ Radiation
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Summary:Our observations indicate a characteristic pattern in the long-term variation of soil radon concentrations, which seems to be consistent with the expected variation of regional stress in relation to seismicity. However, it seems that the major changes in radon level begin before the rock rapture, i.e. before the earthquake occurs. These conclusions have emerged after long-term observations with continuous and thorough real-time gamma-radiation monitoring in the seismically active area of the Gulf of Corinth, Greece. The recordings acquired close to a hot spring were of very high quality, implying that the deep hydraulic flow can possibly play a key role in the pre-earthquake variation of radon level. We were able to observe outstanding examples of radon level variations before significant seismic events in the Gulf of Corinth that cannot be attributed to other external factors such as atmospheric phenomena.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-09441-0