Radon Anomaly: A Possible Precursor of the 1978 Izu-Oshima-kinkai Earthquake
- 22 February 1980
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 207 (4433) , 882-883
- https://doi.org/10.1126/science.207.4433.882
Abstract
Precursory changes in the radon concentration of groundwater were observed prior to the Izu-Oshima-kinkai earthquake (magnitude 7.0) 14 January 1978. The distance from the epicenter to a continuous radon-monitoring station at Nakaizu was about 25 kilometers. A sudden drop and a subsequent increase in the radon concentration recorded on 9 January 1978 were significant. The size of the spike-like change was about 15 percent. After the earthquake, a remarkable increase in the radon concentration occurred.Keywords
This publication has 2 references indexed in Scilit:
- A method for continuous measurement of radon in groundwater for earthquake predictionJournal of Geophysical Research, 1977
- ANOMALOUS CRUSTAL ACTIVITY IN THE IZU PENINSULA, CENTRAL HONSHUJournal of Physics of the Earth, 1977