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Updated: May 28, 2025
06:28
Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
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Spatio-Temporal Correlation Between Radon Emissions and Seismic Activity: An Example Based on the Vrancea Region
David Montiel-López1, Sergio Molina1,2, Juan José Galiana-Merino3,4
1Multidisciplinary Institute for Environmental Studies, University of Alicante, Ctra. San Vicente del Raspeig, s/n, 03080 Alicante, Spain.
Sensors (Basel, Switzerland)
|February 13, 2025
Summary
Radon gas anomalies show a significant correlation with seismic activity rates in the Vrancea region. This finding suggests potential for forecasting earthquakes larger than a given magnitude using radon monitoring.
Area of Science:
- Geophysics
- Seismology
- Environmental Science
Background:
- Radon gas anomalies have long been studied as potential earthquake precursors.
- The Vrancea region, Romania, is seismically active and monitored by a real-time network.
Purpose of the Study:
- To investigate correlations between radon emissions and seismic activity rate.
- To assess the potential for forecasting earthquakes using radon anomalies.
Main Methods:
- Radon signals were preprocessed (detrended, deseasoned, smoothed).
- Station signals were correlated to identify regional tectonic processes.
- Seismic activity rate was computed from earthquake catalogues.
Main Results:
- A significant correlation was found between seismic activity rate and radon anomalies.
- A temporal lag was observed between seismic activity and radon anomalies, potentially linked to epicentral distance.
- Changes in the tectonic stress field may explain the observed correlations.
Conclusions:
- Radon anomalies are significantly correlated with seismic activity rates.
- The observed temporal lag suggests potential for earthquake forecasting.
- Further research should explore developing predictive functions incorporating radon data and tectonic factors.
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