When Krakatau was erupted at 10.02, Sunday morning, 27 August, 1883, 36.417 people were killed by one of the greatest volcanic eruption that ever happened on earth. The victims were not only suffered by the pyroclastics of Krakatau but also swept by tsunami which had drawn 297 Desas (a small administrative u- nit of human settlement). Of the 297 Desas, 165 of them were completely vanished from …
Krakatau catastrophic eruption in 1883 produced a large amount of pumice in the form of pyroclastic flow or fall. At present, they are on Rakata, Sertung, Panjang, and Sebesi islands. The pumice as the major constituent, often accompanied by obsidian is petrographically and chemically analysed. Most pumice was white with some pink and blackish grey; in various from ash, sand lapilli to block. M…
The post-meeting trips arranged for a guided by VSI sci- entists were a great success, and at the outset I'd like to convey the thanks from my colleagues, and from myself, for extending this considerable hospitality and courtesy to us. Each and every one of the participants: Fiske, Simkin, Stoiber, Williams, Glicken, Yokoyama, Punongbayan the Banks, Rosengren, and of course Mary Ann and I, were…
It is, indeed, both a pleasure and a privilege for me to welcome you on behalf of the Indonesian Governement and of the Indonesian Institute of Sciences (LIPI) at the Opening Ceremony of the Symposium on the 100th Vear Development of Mt. Krakatau and its Surroundings. LIPI is most happy to have you all with us today, since by your very presence you have also honoured us at LIPI's sixteenth anni…
Geochemical and lithological studies of volcanic rocks, decta and pyroclastic flows, those of which were collected from Phenocrystic minerals from the Krakatau Group, were carried out. The volcanic rocks were also investigated by the electron-probe Thermally altered products and related minerals, icroanalyzer. And pyroclastic flow and pumice were examined by X-ray powder iffraction method and t…
Pumice flow of the 1883 Krakatau eruption occurs It at Small Rakata, Rakata and Sertung Islands, those which roughly correspond to the wall of Krakatau caldera, Indonesia. significantly differs in both mineral and chemical compositions against any other volcanic rock or ejecta of the Krakatau Group, those of which belong to Miyashiro's (1974) tholeiitic series. Meanwhile, lithic fragments of gr…
Nature gave one of its warnings in late May 1883. The uninhabited, largely ignored island of Krakatau, in the middle of the Sunda Straits between the Indonesian islands of Sumatra and Java, suddenly stirred. Billowing clouds of smoke and booming thunder caused a small shiver of terror among the inhabitants of the nearby islands.
The Krakatau complex situated in the Sunda Strait, as a part of the Lampung Province (105°21'20" - 105°27'44" E. Long/6°03'0 2, Lot.), consists of four islands: Rakata, Sortung, Panjang and Anak Krakatau. The bordering sides facing each other at Nakata, Sertung and Panjong show a steep morphology which forms the enlders wall, at none places revealing faults. The chronology of the volcanic…
Krakatau Volcanic Complex located in Sunda Strait, Indonesia, erupted catastrophically in 1883. The eruption was preceeded by the increasing number of seismicity during the last 7 years prior to the eruption. The initial stage of the eruption was indicated by the ash outburst of Perbu- atan volcano in May and followed by another activity in the area south of Danan Volcano in July, 1883. Ashes i…