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A Stress Condition in Aquifer Rock for Detecting Anomalous Radon Decline Precursory to an Earthquake.
- Source :
- Pure & Applied Geophysics; Mar2017, Vol. 174 Issue 3, p1291-1301, 11p
- Publication Year :
- 2017
-
Abstract
- Recurrent groundwater radon anomalous declines were observed from well measurements in the Antung hot spring area (eastern Taiwan) prior to five of six earthquakes that occurred between 2003 and 2011 ( M range 5.0-6.8). The relationship between the detectability of radon anomalies and the first motions of P-waves was investigated. Based on the first motions of P-waves recorded near the investigated well, a precursory decrease in groundwater radon can be detected only when the first motion is compression. No precursory change in groundwater radon concentration was observed for the downward first motion of P-waves. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00334553
- Volume :
- 174
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Pure & Applied Geophysics
- Publication Type :
- Academic Journal
- Accession number :
- 121413112
- Full Text :
- https://doi.org/10.1007/s00024-016-1461-2