Ditapis dengan
Preliminary Report on The Mt.Merapi Volcanic Eruption, Indonesia Januari 1969
During the eruption cycle of 1967-1968 a new lavadome came into existence in the upper breach of Batang river (SW-slope) at an elevation of 2600. The extrusion of lava started on October 10, 1967, and the growth of the dome--being accompanied from time to time by small avalanches with a naximun dis-tance of 1.5 km. fron its source--lasted continuously and finally got an elongated shape (Figure …
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- PVG E.69-18
Laporan Perjalanan Bagian Volkanologi Mengikuti Rombongan J.M. Menteri Sosial…
Pada akhir bulan Februari 1965 didpat berita dari seketeratis Menko Kesejahteraan, drs. Sudarsono, tentnag rencana perjalanan J.M. Menteri Sosial ke daerah Jawa Timur pada tgl 22 Maret 1965. Didalam acara termasuk a.l. peninjauan-peninjauan ke G. Kelut dan G. Semeru
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- PVG E.65-1
Letusan G. Raung Pada Achir Bulan Januari dan Permulaan Bulan Februari 1953
Pada permulaan bulan Pebruari oleh pos pendjagaan D.G.B. di Kawah Idjen telah dilaporkan adanja tanda2 kegiatan dari G.Raung, jang terlihat mulai dari tg. 31 Djanuari 1953. Pada tg. 5 Pebruari diterima kawat dari Residen Besuki jang meminta penindjauan segera. Pada hari Saptu tg. 7 Pebruari penulis meninggalkan Bandung dan sampailah di Bondowoso pada esok harinja. Disini didapat keterangan2 dar…
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- PVG E.53-4
Laporan G. Raung Februari-Maret 1956
Oleh penulis telah dindakan penindjnuan kepuntjak pada awal bulan Nopember 1955. Pemeriksaan ini adalah jang per-tama kali sedjak letusan2 tahun 1953 berachir dan oleh ka-renanja dianggap sangat penting untuk mengetahui perobahan2 Jang terdjadi didasar kaldera dan pada kerutjut erupsi во-bagai akibat proces letusan tersebut.
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- PVG E.56-2
A Renewed Activity of ''Hobal Volcano'' (Mt. Ile Werung) in 1976 (with one an…
Since the recorded activities in the beginning of December 1973 which lasted approximately one year, not a single indication con cerning activity of "Hobal Volcano" (or around the location where the "volcano" has disappeared below sea surface, as it was stated on December 31, 1974) was observed during the year 1975. On March 23, 1976, a radiogram sent by the local administrator to Bandung Headq…
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- PVG G.76-2
The Submarine Flank Eruption of Mt. Ili Werung
During the months of June until August 1974 three volcanic peaks emerged above sea level, after the occurrence of submarine activities which started since the first week of December 1973. These small volcanic islets, located about 700 meters southeast off the coast of Lomblen island, was given the name of "Hobal volcano" by local inhabitants. Investigations carried out on May 9, 1976, discovere…
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- PVG G.74-3
The Eruption of Mt. Sirung
The eruptive activities of Mt. Sirung during the months of May until June are summarized. May 12 An ash eruption took place at 06.00 loc. time; ash showers reached distances of 25 kilometers. The locality of the eruption center was assumed south of the crater lake or east of B crater.
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- PVG G.75-5
The Eruptions Of Mt. Ili Boleng
On March 21 and 31 eruptions took place, discharging ash clouds about 1 kilometer high, which then drifted northeast until 5 kilome ters distant. Eruption products composed of ash, sand and lapilli mixed with sul-fur were deposited until a thickness of 2 centimeters above the villages of Lamalota, about 1 kilometer N.NW, and Dokin, about 2 kilo meters SE of the crater.
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- PVG G.75-4
The eruptions of Anak Krakatau from March Until June 1975
Renewed activities started on March 13 with an eruption, soon succeeded by bigger scale eruptions acoompanied by ejection of incandes cent lava fragments. Ash showers fell along the western coast of java adn sometimes on the Southern coast of Sumatera, depanding on the prevailing winds.
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- PVG A.75-7
Penghanyutan Jembatan - Jembatan di daerah aliran T. Unda oleh lahar sekunder…
Kegiatan G.Agung selama tahun 1963 jang disertai dua kali letusan paroksismal pada tgl.17 Maret dan 16 Mei dalam tahun itu djuga telah mengeluarkan bahan2 letusan dalam jumlah sangat banjak termasuk ladu jang diendapkan di-lereng2 gunung. Sedjumlah besar diantaranja memasuki pula sungai Unda beserta anak2 sungainja jang berbulu dilereng selatan G.Agung. Ini mengakibatkan hanjutnja djembatan di …
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- PVG G.67-5
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah