1887

Abstract

Despite the fact that no strong earthquake (> M6) occurred during the investigation period in the region, some meaningful relationship between anomalies in radon/thoron concentration and seismic events have been found. It was observed that both soil radon and thoron data seems to be affected by variation in the meteorological parameters. During the investigation period there are two radon peaks (≥ +2SD) and these were correlated with the relevant seismic events. The so-called postquake reduction was observed for radon minimum value during the measuring period. It is interesting to note that most of the seismic events occurred along the Indo-Burmese arc during the investigation period (Fig. 2) suggesting significant disturbance between the plate tectonics along the Indo-Burmese subduction zone. It can be seen that continuous soil radon/thoron measurements at weekly intervals were not frequent enough to obtain a precise interpretation of the data. A long term database is needed for better results for which work is in progress.

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2018-09-09
2024-04-23
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References

  1. Dewey, J.F., and Bird, J.M.
    [1970] Mountain belts and the new global tectonics. J. Geophys. Res., 75(14), 2625–2647.
    [Google Scholar]
  2. Dobrovolsky, I.P., Zubkov, S.I. and Miachkin, V.I.
    [1979] Estimation of the size of earthquake preparation zones. Pure and Applied Geophysics, 117(5), 1025–1044.
    [Google Scholar]
  3. Eappen, K.P. and Mayya, Y.S.
    [2004] Calibration factors for LR-115 (type II) based radon thoron discriminating dosimeter. Radiation Measurements, 38(1), 5–17.
    [Google Scholar]
  4. Etiope, G. and Martinelli, G.
    [2002] Migration of carrier and trace gases in the geosphere: an overview. Physics of the earth and planetary interiors, 129(3–4), 185–204.
    [Google Scholar]
  5. Fleischer, R.L.
    [1981] Dislocation model for radon response to distant earthquakes. Geophysical Research Letters, 8(5), 477–480.
    [Google Scholar]
  6. Ghosh, D., Deb, A., Sahoo, S.R., Haldar, S. and Sengupta, R.
    [2011] Radon as seismic precursor: New data with well water of Jalpaiguri, India. Natural Hazards, 58(3), 877–889.
    [Google Scholar]
  7. Giammanco. S., Sims, K.W. and Neri, M.
    [2007] Measurement of 220Rn, 222Rn and CO2 emission in soil and fumaroles gases on Mt. Etna volcano (Italy): Implications for gas transport and shallow ground fracture. Geochem. Geophys. Geosyst., doi:10.1029/2007GC001644.
    https://doi.org/10.1029/2007GC001644 [Google Scholar]
  8. Jaishi, H.P., Singh. S., Tiwari, R.P. and Tiwari, R.C.
    [2014a] Temporal variation of soil radon and thoron concentrations in Mizoram (India), associated with earthquakes. Natural Hazards, 72(2), 443–454.
    [Google Scholar]
  9. Jaishi, H.P., Singh, S., Tiwari, R.P. and Tiwari, R.C.
    [2014b] Analysis of soil radon data in earthquake precursory studies. Annals of Geophysics, doi:10.4401/ag‑6513.
    https://doi.org/10.4401/ag-6513 [Google Scholar]
  10. King, C.Y.
    [1993] In: Proceeding of the second workshop on radon monitoring in radioprotection, environmental and/or earth science Trieste, 1991. World scientific publ., Singapore, 244–274.
    [Google Scholar]
  11. Mayya, Y.S., Eappen, K.P. and Nambi, K.S.V.
    [1998] Methodology for mixed field inhalation dosimetry in monazite areas using a twin-cup dosemeter with three track detectors. Radiation Protection Dosimetry, 77, 177–184.
    [Google Scholar]
  12. Negarestani, A., Namvaran, M., Shahpasandzadeh, M., Fatemi, S.J., Alavi, S.A., Hashemi, S.M., Mokhtari, M.
    [2014] Design and investigation of a continuous radon monitoring network for earthquake precursory process in Great Tehran. Journal of Radioanalytical and Nuclear Chemistry, 300(2), 757–767.
    [Google Scholar]
  13. Neri, M., Giammanco, S., Ferrera. E. et al.
    [2011] Spatial distribution of soil radon as a tool to recognize active faulting on an active volcano: the example of Mt. Etna (Italy). Journal of environmental radioactivity102(9), 863–870.
    [Google Scholar]
  14. Planinić, J., Radolić, V. and Lazanin, Ž.
    [2001] Temporal variations of radon in soil related to earthquakes. Applied Radiation and Isotopes, 55(2), 267–272.
    [Google Scholar]
  15. Singh, S., Jaishi, H.P., Tiwari, R.P. and Tiwari, R.C.
    [2017] Time series analysis of soil radon data using multiple linear regression and artificial neural network in seismic precursory studies. Pure Appl.Geophys, 174, 2793–2802.
    [Google Scholar]
  16. Vaupotic, J., Riggio, A., Santulin, M., Zmazek, B. and Kobal, I.
    [2010] A radon anomaly in soil gas at Cazzaso, NE Italy, as a precursor of an ML = 5.1 earthquake. Nukleonika, 10, 895–899.
    [Google Scholar]
  17. Zmazek, B., Italiano, F., Živĉić, M., Vaupotić, J., Kobal, I. and Martinelli, G.
    [2002] Geochemical monitoring of thermal waters in Slovenia: relationship to seismic activity. Applied Radiation and Isotopes, 57(6), 919–930.
    [Google Scholar]
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