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得克萨斯大学 R.E.Brekir 等人为了确定地震前动物习性异常的报道是否可取,他们将这种报道与对动物敏感限度的实验研究作了对比,结果表明,有些动物比人更能接受地震前出现的某些地球物理刺激。这类刺激包括低频的震波或声波(50赫以下)、电场变化和嗅觉刺激。例如,目前的研究表明,鸟和鱼比人对频率低于40赫的声音较敏感,许多动物能极好通过皮肤接收到低频震动。有些鱼对小于10~(-5)伏/米的电场变化是敏感的,有些实验动物对更弱的电场也有反应。对于这样的电和声刺激,已报道的地球物前兆水平,也是处在地震前某些动物出现异常习惯的范围内。此外,地震前小裂隙释放的气体引起的刺激,也
REBrekir et al. Of Texas University contrasted with the experimental study on the sensitivity of animals in order to determine whether it was advisable to report the anomalous animal habitats prior to the earthquake. The results showed that some animals were more able to accept the pre- Some geophysical stimulation. Such stimuli include low-frequency shock waves or sound waves (below 50 Hz), changes in electric fields and olfactory stimuli. For example, current research shows that birds and fish are more sensitive to frequencies below 40 Hz and that many animals receive excellent low frequency vibrations through the skin. Some fish are sensitive to changes in the electric field of less than 10 -5 volts per meter, and some animals respond to weaker electric fields. For such electrical and acoustic stimuli, the level of earth precursors that have been reported is also within the range of some animals’ unusual habits before the earthquake. In addition, gas released by the small cracks before the earthquake caused stimuli, too