Ground-Water Radon Anomaly Before the Kobe Earthquake in Japan
- 7 July 1995
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 269 (5220) , 60-61
- https://doi.org/10.1126/science.269.5220.60
Abstract
Radon concentration in ground water increased for several months before the 1995 southern Hyogo Prefecture (Kobe) earthquake on 17 January 1995. From late October 1994, the beginning of the observation, to the end of December 1994, radon concentration increased about fourfold. On 8 January, 9 days before the earthquake, the radon concentration reached a peak of more than 10 times that at the beginning of the observation, before starting to decrease. These radon changes are likely to be precursory phenomena of the disastrous earthquake.Keywords
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