Abstract
THE Asama-yama, situated in the central part of the main island of Japan, may be regarded as one of the most active of Japanese volcanoes. Its highest point is 8130 ft. above sea-level, and about 4200 ft. above the surrounding land. The present crater is about 400 ft. in depth and a quarter of a mile in diameter. The earliest recorded eruption took place in A.D. 685, the greatest in 1783. Since this year the volcano has remained comparatively quiet until within the last few years. Since December, 1909, the explosions have been very frequent, more than sixty having occurred within the next two years. The floor of the crater has also risen considerably during the last twenty years, and everything, in -the opinion of Prof. Omori, who is closely studying the phenomena, points to the gradual approach of another epoch of great volcanic activity, possibly after a lapse of about twenty years.
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DAVISON, C. The Eruptions of the Asama-Yama (Japan) in 1909–111. Nature 89, 487–488 (1912). https://doi.org/10.1038/089487b0
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DOI: https://doi.org/10.1038/089487b0