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問:為什麼在地震影響厲害地帶所造成的裂隙是沿山脊、河床兩岸、人工所为的溝渠及彎曲地帶而延長,而与它相垂直的則很少? (讀者成飛) 答:地震所造成的自然破壞現象如山崩地裂等,一般受着地質構造的控制和地震波的影響,都應有相當的規律。而我們所看到的地震裂縫多沿山脊、河床兩岸、人工溝渠及弯曲地帶延長;与之垂直或斜交的較少,這顯然又受了地形的限制。
Q: Why are the fractures caused by the earthquake greatly prolonged along the ridges and river banks, artificially-constructed ditches and curved areas, but rarely perpendicular to them? (Reader Cheng Fei) A: The earthquake caused by The phenomenon of natural destruction such as landslides and so on, generally subject to geological structure control and seismic waves, should have a considerable law. The seismic cracks that we have seen are mostly prolonged along the ridges, banks of the riverbed, artificial ditches and curved areas; there are few vertical or oblique intersections, which obviously have been limited by the terrain.