Earthquake Prediction Studies Using Radon as a Precursor in N-W Himalayas, India: A Case Study
Vivek Walia,Hardev Singh Virk,Tsanyao Frank Yang,Sandeep Mahajan,Monika Walia,Bikramjit Singh Bajwa +5 more
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In this paper, Radon monitoring was carried out using emanometry technique at Palampur and Dalhousie stations in the Kangra valley of Himachal Pradesh (India) from June 1996 to September 1999.Abstract:
Many theoretical and empirical algorithms have been proposed in the literature for radon release; however whilst its relation with earthquake occurrence has been developed on occasions, there have been no specific complete studies of this phenomenon. In this study, radon monitoring was carried out using emanometry technique at Palampur and Dalhousie stations in the Kangra valley of Himachal Pradesh (India) from June 1996 to September 1999. Discrete radon concentrations were recorded in soil-gas and groundwater at both the stations. Radon anomalies were correlated with microseismic events recorded along the Main Boundary Thrust (MBT) of N-W Himalaya in the grid (30-34°N, 74-78°E). The influence of meteorological parameters viz, temperature, rainfall, relative humidity and wind velocity on radon concentration was qualitatively evaluated. The radon exhalation showed positive correlation with temperature, rainfall, relative humidity and negative correlation with wind velocity. Both positive and negative radon anomalies were recorded. The study reveals the precursory nature of radon anomalies and their correlation with microseismic events in 62% of the cases but prediction of earthquakes is yet a remote possibility. From the analysis it has been found that radon anomaly is not only influenced by seismic parameters but also by meteorological parameters and the nature of carrier gases/fluids. To learn more about the phenomenon, simultaneous recording of various gases (He, CO2, CH4) and meteorological parameters, together with multiple continuous measurements of radon have been suggested.read more
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Anomalous radon emission as precursor of earthquake
TL;DR: In this paper, a brief review of the progress made in the field of radon measurements in earth sciences, specially in predicting earthquakes, is presented, and the models proposed in relating precursor time, epicentral distance, magnitude of earthquake have also been discussed.
Journal ArticleDOI
Radon earthquake precursor: A short review
TL;DR: More than 100 publications reporting radon anomalies to precede earthquakes were evaluated as discussed by the authors, and a clear apparent negative correlation between the number of reported anomalies and the published length of the timeseries is evident.
Journal ArticleDOI
Reconnaissance of soil gas composition over the buried fault and fracture zone in southern Taiwan
TL;DR: In this paper, soil gas compositions are measured and synthesized in conjunction with the geological, geophysical and geomorphological information along the Chaochou Fault, which is considered as an active fault in southern Taiwan.
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Soil–gas monitoring: A tool for fault delineation studies along Hsinhua Fault (Tainan), Southern Taiwan
Vivek Walia,Shih Jung Lin,Ching-Chou Fu,Tsanyao Frank Yang,Wei-Li Hong,Kuo-Liang Wen,Kuo-Liang Wen,Cheng-Hong Chen +7 more
TL;DR: In this paper, the relationship between soil gas distribution and tectonic systems in the vicinity of the Hsinhua Fault zone in the Tainan area of Southern Taiwan was investigated.
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Seismo-Geochemical Variations in SW Taiwan: Multi-Parameter Automatic Gas Monitoring Results
Tsanyao Frank Yang,Tsanyao Frank Yang,Ching-Chou Fu,Vivek Walia,Chiao-Chicy Chen,L. L. Chyi,Tsung-Kwei Liu,Sheng-Rong Song,Ming-Yih Lee,C.-W. Lin,C.-C. Lin +10 more
TL;DR: In this article, a multi-parameter automatic gas station was built on the bank of one of the largest mud-pools at an active fault zone of southwestern Taiwan, for continuous monitoring of CO2, CH4, N2 and H2O, the major constituents of its bubbling gases.
References
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Estimation of the size of earthquake preparation zones
TL;DR: In this article, an approximate solution of the problem for a soft elastic inclusion in an elastic half-space is presented. But the authors assume that the moduli of the inclusion differ slightly from those of the surrounding medium (by no more than 30%).
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