Groundwater Chemical Anomaly before and after the Chi-Chi Earthquake in Taiwan

  • Author(s): Sheng-Rong Song, Wei-Yi Ku, Yaw-Lin Chen, Y-Chieh Lin, Chia-Mei Liu, Li-Wei Kuo,Tsanyao, F. Yang, Huann-Jih Lo
  • DOI:




The Chi-Chi earthquake (ML= 7.3 and 12 km focal depth ) occurred on 21 September 1999 in central Taiwan resulting in deaths totaling over 2300. After the earthquake we collected commercialized bottled water (namely Chingjing water), pumped from wells at Puli, Nantou County, central Taiwan, about 10km northeast of the epicenter of this earthquake. The anions, e.g., CI-, SO42-, and NO3-, of the bottled water prepared form 1 December 1998 until after the shocks for duration of about two and a half years were analyzed.

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