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PubMed · 16533545

Anomalous decrease in groundwater radon before the Taiwan M6.8 Chengkung earthquake.

T Kuo·K Fan·H Kuochen·Y Han·H Chu·Y Lee
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Abstract

On December 10, 2003, an earthquake of magnitude (M) 6.8, the strongest since 1951, occurred near the Chengkung area in eastern Taiwan. Approximately 65 d prior to the 2003 Chengkung earthquake, precursory changes in the groundwater radon concentration were observed at the Antung radon-monitoring station located 20 km from the epicenter. The radon anomaly was a decrease from a background level of 28.9 BqL(-1) to a minimum of 12.2 BqL(-1). Observations at the Antung hot spring suggest that the groundwater radon, when observed under suitable geological conditions, can be a sensitive tracer for strain changes in the crust preceding an earthquake.

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DisastersEnvironmental MonitoringGeographyRadonTaiwanWaterWater Pollutants, RadioactiveJournal Article

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T Kuo, K Fan, H Kuochen, Y Han, H Chu, Y Lee. 2006-03-13. Anomalous decrease in groundwater radon before the Taiwan M6.8 Chengkung earthquake.. https://doi.org/10.1016/j.jenvrad.2006.01.005

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