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Anomalous soil radon fluctuations – signal of earthquakes in Nepal and eastern India regions
Argha Deb Mahasin Gazi Chiranjib Barman
Volume 125 Issue 8 December 2016 pp 1657-1665
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https://www.ias.ac.in/article/fulltext/jess/125/08/1657-1665 -
Keywords
Geochemical ;soil radon-222 ;earthquake ;solid state nuclear track detector ;time series -
Abstract
The present paper deals with pre-seismic soil radon-222 recorded at two different locations 200 m apart, at Jadavpur University main campus, Kolkata, India. Solid state nuclear track detector method is used for detection of the radioactive radon gas. Two simultaneous 4-month long time series data have been analysed. Anomalous fluctuations in the radon datasets have been observed prior to recent earthquakes in Nepal and eastern India during the monitoring period, mainly, the massive 25th April 7.8 M Nepal earthquake. The simultaneous measurements assist in identifying seismogenic radon precursor efficiently.
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Author Affiliations
Argha Deb1 Mahasin Gazi1 Chiranjib Barman1 2
- School of Studies in Environmental Radiation and Archaeological Sciences & Department of Physics, Jadavpur University, Kolkata 700 032, India.
- Variable Energy Cyclotron Centre, 1/AF- Bidhannagar, Kolkata 700 064, India.
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Dates
- Published
- 6 December 2016
- Manuscript received
- 22 March 2016
- Manuscript revised
- 10 August 2016
- Accepted
- 25 August 2016
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