A Stress Condition in Aquifer Rock for Detecting Anomalous Radon Decline Precursory to an Earthquake

T. Kuo; H. Kuochen; C. Ho; W. Chen

doi:10.1007/s00024-016-1461-2

A Stress Condition in Aquifer Rock for Detecting Anomalous Radon Decline Precursory to an Earthquake

T. Kuo, H. Kuochen, C. Ho, W. Chen

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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_w 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.

Original language	English
Pages (from-to)	1291-1301
Number of pages	11
Journal	Pure and Applied Geophysics
Volume	174
Issue number	3
DOIs	https://doi.org/10.1007/s00024-016-1461-2
State	Published - 1 Mar 2017

Keywords

Earthquakes
Groundwater
P waves
Radon-222
Stress

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10.1007/s00024-016-1461-2

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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 (Mw 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.",

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T1 - A Stress Condition in Aquifer Rock for Detecting Anomalous Radon Decline Precursory to an Earthquake

AU - Kuo, T.

AU - Kuochen, H.

AU - Ho, C.

AU - Chen, W.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - 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 (Mw 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.

AB - 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 (Mw 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.

KW - Earthquakes

KW - Groundwater

KW - P waves

KW - Radon-222

KW - Stress

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VL - 174

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EP - 1301

JO - Pure and Applied Geophysics

JF - Pure and Applied Geophysics

IS - 3

ER -

A Stress Condition in Aquifer Rock for Detecting Anomalous Radon Decline Precursory to an Earthquake

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