Anomalously high radon discharge from the Atotsugawa fault prior to the western Nagano Prefecture earthquake (M 6.8) of September 14, 1984
Anomalously high radon discharge from the Atotsugawa fault prior to the western Nagano Prefecture earthquake (M 6.8) of September 14, 1984
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DOI：
10.1016/0040-1951(88)90034-0
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发表时间：
1988-09
期刊：
影响因子：
2.9
通讯作者：
H. Ui;H. Moriuchi;Yukiko Takemura;H. Tsuchida;Iwao Fujii;Masaru Nakamura
中科院分区：
文献类型：
--
作者：
H. Ui;H. Moriuchi;Yukiko Takemura;H. Tsuchida;Iwao Fujii;Masaru Nakamura
在1984年9月14日长野县西部地震（M6.8）发生前3个月（显微镜计数），6个测点的氡α径迹逐渐增加，并在2周前（机械和显微镜计数）显著增加。监测点位于震中西北约65公里处的Atotsugawa断层的剪切带上。氡射气的变化被认为与地震有关，而不是与气象条件的变化有关。
Radon alpha tracks monitored at six sites increased gradually three months before (detected by microscopic counting), and increased remarkably 2 weeks before (detected by both mechanical and microscopic counting) the western Nagano Prefecture earthquake (M6.8) which occurred on September 14, 1984. The monitoring sites were located about 65 km northwest of the epicenter, on the shear zone of the Atotsugawa fault. The changes in radon emanation are considered to be related to the earthquake rather than to changes in meteorological conditions.