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1981年5月26日海上保安厅水路部的声波探测调查中,发现在预测未来东海地震震源区的骏河湾海底,发生了板块(地壳岩石)的“沉降现象”,因此,证实了骏河湾仍是“巨大地震的巢”。骏河湾地区大地震的发生机制过去只是理论性的理解,而现已通过事例予以证明了。由于“沉降”的压力作用,地壳开始出现轮廓清楚的凸凹不平的褶曲现象。水路部现已把调查结果报告了地震预报联络会。去年春天水路部也发现了日本海沟内的巨大海山正好分成两半,而且错开下沉。这同样地证实了“板块构造理论”。水路部为了查明地震发生
On May 26, 1981, an acoustic wave survey conducted by the Department of Waterways of the Coast Guard found that the subsidence of the plate (crustal rock) occurred at the bottom of Surug Bay, which is predicted to be the source region of the future East China Sea earthquake. Therefore, Bay is still “a huge earthquake nest.” The mechanism of the major earthquakes in the Suruga Bay area was only a theoretical understanding in the past and has been proved by examples. Due to the “subsidence” pressure, the crust began to appear clearly contoured rugged folds. The Ministry of Waterways has now reported its findings to the Earthquake Prediction Association. Last spring, the Ministry of Waterways discovered that the huge seamounts in the Japanese trench were split in half and staggered. This similarly confirms the theory of plate tectonics. Ministry of Waterways in order to identify the earthquake