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Volcanic Activity in 1946


According to Earthquake Notes, 18, Nos. 1 and 2, September 1946, the first new volcanic activity of 1946 was on February 17 when a volcano on Niuafoou in the Tonga Islands erupted violently and the lava flow partly covered a village. In the same month, in Baluchistan, a volcano north of Karachi, India, began emitting mud, and 200 miles south of Yoksuka naval base, Japan, a volcanic island rose from the sea. On March 20 Mount Sakura-Jima in southern Japan blew boulders more than 1,000 ft. into the air and sent up a smoke column 3,000 ft. high. Lava flows doomed nearby villages. On May 11 Izalco volcano in El Salvador erupted after twelve years quiescence. Santiago volcano in Nicaragua began smoking in June. On September 25 Stromboli in Italy was again active. Continued activity was reported from Kluchenskayo volcano on the Kamchatka Peninsula, which erupted in December 1944, while in New Zealand, Mount Ruapeku continued to shower dust over a wide area after the outbreak in August 1945. Paricutin volcano was intermittently active during the year, but there was an overall subsidence. Volcanic ash, reported over the Aleutian Trench in 1945, was later found to be due to a spectacular eruption on Umnak Island, which blew steam and ash several thousand feet into the air.

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Volcanic Activity in 1946. Nature 160, 744 (1947).

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