Estimation of aseismic crustal-strain using radon precursors of the 2003 M 6.8, 2006 M 6.1, and 2008 M 5.0 earthquakes in eastern Taiwan

Tom Ming-Ching Kuo, C. Lin, G. Chang, K. Fan, W. Cheng, C. Lewis

研究成果: Article

14 引文 斯高帕斯(Scopus)

摘要

Aseismic crustal-strain signals prior to the 2003 Mw 6. 8 Chengkung, 2006 Mw 6.1 Taitung, and 2008 Mw 5. 0 Antung earthquakes with epicenters located 20, 55 and 11 km, respectively, from the Antung radon-monitoring station have been calculated using the radon anomalies recorded. Specifically, radon decreased from background levels of 791 ± 46, 762 ± 57, and 735 ± 48 pCi/L to minima of 326 ± 9, 371 ± 9, and 480 ± 43 pCi/L prior to the 2003, 2006, and 2008 earthquakes, respectively. The estimated aseismic crustal-strain maxima at the Antung hot spring during the rock dilation stage were 3. 6, 2.7, and 1.3 ppm, respectively. The v-shaped radon pattern recognized in all three anomalies is valuable for detecting the aseismic strain precursory to disastrous earthquakes in the Antung hot spring which is situated in a brittle fractured aquifer of limited recharge surrounded by ductile mudstone.

原文English
頁(從 - 到)219-228
頁數10
期刊Natural Hazards
53
發行號2
DOIs
出版狀態Published - 2010 五月 1

    指紋

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

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