在利用水氡变化探索地震前兆的观测研究中,水氡的突跳变化颇引人注目。某些研究者认为这种突跳可能是强震发生的短临前兆信息。位于天津近郊的张道口井,自1977年开展水氡的正常观测以来,长期平稳。可是在唐山余震趋于衰减的1979年却出现了一系列的突跳变化(图1)。 In the observation of the use of water radon changes to explore earthquake precursors, water radon kicking changes quite compelling. Some researchers think this kicking may be the short-term precursor to strong earthquakes. The Zhangdao well in the outskirts of Tianjin has enjoyed long-term stability since its normal observation of radon in 1977. However, a series of sudden jumps occurred in 1979 when the aftershock in Tangshan tended to decay (Figure 1).