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1995～2000年期间,尼泊尔地震台网记录到的夏季地震次数比冬季地震次数少37±8%;其中ML>2级的地震少31%,而ML>4级的地震少63%。我们的研究表明,观测到这种现象是偶然的概率小于1%。我们发现,其原因或者是大多数地表面加载太小,或者这些加载的反极性效应使得冬季的地震活动性增强。我们认为,孕震深度孔隙压力增大导致的库仑破裂是一种可能的机制。然而,这样一种机制需要流体扩散比地表面加载滞后6个月,这种机制是可能的,尽管可能性很小。我们更倾向于这样一种解释:恒河和印度北部伴随季风降雨的应力加载使夏季地震活动受到抑制,其机制将在另一篇论文中讨论。
Between 1995 and 2000, the number of summer earthquakes recorded by Nepal Seismological Network was 37 ± 8% less than the number of winter earthquakes. Among them, the earthquakes with ML> 2 were 31% less and the earthquakes with ML> 4 were 63% less. Our research shows that the probability of observing this phenomenon is accidental is less than 1%. We find that either because most of the surface loading is too small, or the reverse polarity effects of these loadings increase seismic activity in winter. In our opinion, Coulomb failure caused by the increased pore pressure of the seismogenic depth is a possible mechanism. However, such a mechanism requires fluid diffusion lagging six months behind the surface loading, a mechanism that is possible, albeit less likely. We are more inclined to explain that the mechanism of the severing of the summer earthquakes will be discussed in a separate paper by the stress loading of the Ganges and northern India along with monsoon rainfall.