Abstract
A two day visit to the Anak-Krakatau on March 15–16, 1963, revealed that dramatic changes have taken place recently in the Anak-Krakatau volcano. A new topographic survey for the major changes in the top area was completed; two maps and several sections showing the growth and changes in the Anak-Krakatau are presented. The former moonshaped crater lake (1960) has completely disappeared and instead lava flows cover the crater floor between the inner cone and the outer ring wall. Lava streams flowed over the lowest south western crater rim and spread fan-wise into the sea. This activity with the production of lava flows must have taken place between 1960 and the beginning of 1963.
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References
Bemmelen, R. W. van (1949):The Geology of Indonesia Vol. I A. Government Printing Office, The Hague, 1949.
Decker, R., andDjajadi Hadikusumo (1961):Results of the 1960 Expedition to Krakatau. Journ. of Geophysical Research, Vol. 66, No. 11, 1961.
Neuman van Padang, M. (1951):Catalogue to the active volcanoes Including solfatara fields. Part. I, Indonesia, 1951.
Rittmann, A. (1953):Magmatic character and tectonic position of the Indonesian volcanoes, Bulletin Volcanologique, Serie II — Tome XIV, 1953.
Yokoyama I. (1956):Energetics in Active Volcanoes. 1st. paper. (Activities of Volcano Mihara, Ooshima island during the Period 1953–1954). Bull. Earthquake Research Institute, XXXIV, 1956.
Yokoyama I. (1957):Energetics in Active volcanoes, 2nd. paper, Bull. Earthquake Research Institute XXXV, 1957.
Yokoyama I. (1957):Energetics in Active Volcanoes, 3rd. paper, Bull. Eartquake Research Institute XXXV, 1957.
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Paper read at the IAV scientific session of Aug. 30, 1963 (XIII General Assembly, I.U.G.G.).
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Zen, M.T., Hadikusumo, D. Recent changes in the Anak-Krakatau volcano. Bull Volcanol 27, 259–268 (1964). https://doi.org/10.1007/BF02597525
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DOI: https://doi.org/10.1007/BF02597525