Abstract: This paper discusses ultrasonic mechanism of the sealed-H₂ release from basalt rock on the basis of experiments.A small amount of released H₂ by ultrasonic vibration is escaping H₂,whereas most H₂ is absorbed H₂.Both phenomena can be regarded as a precursory H₂.So,it is possible to use H₂.to.forcast earthquake.Seeing that the intensity of u.v.and the its duration were constant in the experiments and the amount of released H₂ gas increased during each vibration,abnormal H₂ seems not to be representative of accoustic emission intensity,thus suggesting that the intensity of the failure of rock may be representative of the earthquake magnitude.

摘要： 本文以实验为基础,论述了玄武岩释放封闭氢的超声机理。在超声作用下释放的封闭氢,只有少部分逸散,可做为氢前兆信息,而大部分则转化为吸附氢,但依然是氢前兆的物质基础。此外,还阐述了只根据氢析出量不能判断声发射强度,从而推测岩石主破裂强度,即地震强弱。