지하수 내 라돈 변동성을 활용한 지진발생 전조현상 관측에 대한 기초연구
Basic Study on the Observation of Earthquake Precursor Manifestation Using Radon Variability in Groundwater
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초록
본 연구에서는 지진발생과 라돈 이상의 상관성을 분석하였고, 지진 전조징후 영역 및 지하수관측소와의 거리와 지진발생과 상관성을 살펴보았다. 첫 번째로 라돈 농도와 수문기상인자(강수와 지하수위)의 상관관계를 살펴보았으며, 라돈 농도, 지하수위, 강수 간 상관성이 매우 낮아 라돈 농도 변동성에 지하수위와 강수가 미치는 영향이 작은 것으로 분석되었다. 두 번째로 지진발생과 라돈 농도의변동 간 상관관계를 분석하였으며, 지진발생에 따라 라돈 농도의 변동성이 매우 크게 나타나 지진발생과 라돈 농도 변동과 상관성이 매우 높음을 확인하였다. 마지막으로 지진 전조징후 영역(RE), 진원지와 지하수관측소 간의 거리(RD), 영역과 거리의 비율(RE/RD)과 지진발생과의 상관관계를 분석하였으며, 라돈 이상으로 분석된 구간에서 RE/RD값이 상대적으로 크게(8 이상) 나타났다. 결론적으로라돈을 지진발생 선행인자로도 활용 가능함을 확인하였다.
Abstract
This study analyzed the correlation between earthquake occurrence and radon anomaly, and the distance between the earthquake precursor manifestation zone and groundwater observatory and the correlation with earthquake occurrence. First, the correlation between radon concentration and hydrometeorological factors (rainfall and groundwater level) was examined, and the correlation coefficients between radon concentration, groundwater level, and rainfall was very low, so it was analyzed that rainfall and groundwater hardly impact on the variability of radon concentration. Second, the correlation between the earthquake occurrences and radon concentration variability was analyzed, and it was confirmed that the variability of radon concentration was very relevant to earthquake occurrences because radon concentration fluctuated according to earthquake occurrences. Last, earthquake precursor manifestation zone (RE), distance between epicenter and observation stations (RD ), and ratio (RE/RD ) were analyzed, and the RE/RD values showed relatively large (8 or more) in the radon anomaly section. Accordingly, radon is expected to be the precursor for earthquakes.
참고문헌 (37)
- Anderson, O. L., "Stress-corrosion Theory of Crack-propagation with Applications to Geophysics", Reviews of Geophysics, 15(1), pp.77~104 (1977)
- Barkat, A., "Radon as an Earthquake Precursor in and around Nothern Pakistan : A Case Study", Geochemical Journal, 51, pp.337~346 (2017)
- Barragán, R. M., "Effects of Changes in Reservoir Thermodynamic Conditions on 222Rn Composition of Discharged Fluids:Study for Two Wells at Los Azufres Geothermal Field (Mexico)", Geofluids, 8(4), pp.252~262 (2008)
- Choubey, V. M., "Precursory Signatures in the Radon and Geohydrological Borehole Data for M4. 9 Kharsali Earthquake of Garhwal Himalaya", Science of the Total Environment, 407(22), pp.5877~5883 (2009)
- Cicerone, R. D., "A Systematic Compilation of Earthquake Precursors", Tectonophysics, 476(3-4), pp.371~396 (2009)
- Dobrovolsky, I. P., "Estimation of the Size of Earthquake Preparation Zones", Pure and Applied Geophysics, 117(5), pp.1025~1044 (1979)
- Favara, R., "Hydrogeochemistry and Stable Isotopes of Thermal Springs : Earthquake-related Chemical Changes along Belice Fault(Western Sicily)", Applied Geochemistry, 16(1), pp.1~17 (2001)
- Geller, R. J, "Earthquake Prediction : A Critical Review", Geophysical Journal International, 131(3), pp.425~450 (1997)
- Gregorič, A., "Radon Concentration in Thermal Water as an Indicator of Seismic Activity", Collegium Antropologicum, 32, pp.95~98 (2008)
- Gregorič, A., "Earthquake Research and Analysis-statistical Studies Observations and Planning", pp.179~196 (2012)
- Hauksson, E., "Radon Earthquake Precursor Studies in Iceland", Journal of Geophysical Research, 86, pp.7037~7054 (1981)
- Heinicke, J., "Anomalous Fluid Emission of a Deep Borehole in a Seismically Active Area of Northern Apennines(Italy)", Applied Geochemistry, 25(4), pp.555~571 (2010)
- 정찬호, "지진 전조인자로서 지하수내 라돈 및 화학성분의 상관성 연구", 지질공학, 28(2), pp.313~324 (2018), 대한지질공학회[DOI]
- 김윤신, "라돈방사능농도의 측정을 통한 지진발생 예측에 관한 연구", 한국환경과학회지, 12(6) (2003), 한국환경과학회
- Kuo, T., "Anomalous Decrease in Groundwater Radon before the Taiwan M6. 8 Chengkung Earthquake", Journal of Environmental Radioactivity, 88(1), pp.101~106 (2006)
- Laskar, I., "A Possible Link between Radon Anomaly and Earthquake", Geochemical Journal, 45(6), pp.439~446 (2011)
- Martinelli, G., "Fluidodynamical and Chemical Features of Radon 222 Related to Total Gases: Implications for Earthquake Predictions", Proceedings of IAEA Meeting on Isotopic and Geochemical Precursors of Earthquakes and Volcanic Eruptions (1993)
- Mjachkin, V. I., "Two Models for Earthquake Forerunners", Pure and Applied Geophysics, 113(1), pp.169~181 (1975)
- Development of Earthquake Risk Analysis and Prediction Technology on the Korean Peninsula Using IoT-based Monitoring of Tectonic Movement and Hydrologic Cycle, "National Research Foundation", ~, pp.NRF-2017R1E1A1A01075118 (2019)
- Ondoh, T, "Investigation of Precursor Phenomena in the Ionosphere, Atmosphere and Groundwater before Large Earthquakes of M>6.5", Advances in Space Research, 43, pp.214~223 (2009)
- Papastefanou, C, "Variation of Radon Flux along Active Fault Zones in Association with Earthquake Occurrence", Radiation Measurement, 45(8), pp.943~951 (2010)
- Ramola, R. C, "Relation between Spring Water Radon Anomalies and Seismic Activity in Garhwal Himalaya", Acta Geophysica, 58(5), pp.814~827 (2010)
- Ramola, R. C., "Soil-gas Radon as Seismotectonic Indicator in Garhwal Himalaya", Applied Radiation and Isotopes, 66(10), pp.1523~1530 (2008)
- Riggio A, "Precursors: Analysis of the Periods Preceding the Recent Earthquakes and Problems Related to Interpretation", Atti 31° Convegno Gruppo Nazionale di Geofisica Terra Solida, pp.356~363 (2012)
- Singh, M., "Radon in Ground Water Related to Seismic Events", Radiation Measurements, 30(4), pp.465~469 (1999)
- Torkar, D., "Application of Artificial Neural Networks in Simulating Radon Levels in Soil Gas", Chemical Geology, 270(1-4), pp.1~8 (2010)
- Torkar, D., "Application of Artificial Neural Networks in Simulating Radon Levels in Soil Gas", Chemical Geology, 270, pp.1~8 (2010)
- Toutain, J. P., "Gas Geochemistry and Seismotectonics : A Review", Tectonophysics, 304, pp.1~27 (1999)
- Vaupotic, J., "A Radon Anomaly in Soil Gas at Cazzaso, NE Italy, as a Precursor of an ML = 5.1 Earthquake", Nukleonika, 55(4), pp.507~511 (2010)
- Walia, V., "Temporal Variation of Soil Gas Compositions for Earthquake Surveillance in Taiwan", Radiation Measurement, 50, pp.154~159 (2013)
- Wang, C. Y, "Liquefaction beyond the Near Field", Seismological Research Letters, 78, pp.512~517 (2007)
- Wang, C. Y., "Earthquakes and Water. Lecture Notes in Earth Sciences" (2010), Springer
- Wang, C. Y., "Mechanism of Water Level Changes during Earthquakes: Near Field Versus Intermediate Field", Geophysical Research Letters, 35(12), pp.L12402~ (2008)
- 우남칠, "지하수 모니터링 이상변동 자료를 이용한 소규모 지진 영향 유추", 지질공학, 25(1), pp.21~33 (2015), 대한지질공학회
- Zmazek, B., "Geochemical Monitoring of Thermal Waters in Slovenia : Relationships to Seismic Activity", Applied Radiation and Isotopes, 57(6), pp.919~930 (2002)
- Zmazek, B., "Radon in a Thermal Spring : Identification of Anomalies Related to Seismic Activity", Applied Radiation and Isotopes, 64(6), pp.725~734 (2006)
- Zmazek, B., "Application of Decision Trees to the Analysis of Soil Radon Data for Earthquake Prediction", Applied Radiation and Isotopes, 58(6), pp.697~706 (2003)
