Laporan Pemeriksaan terhadap G. Ruang

Gunung Ruang pada dewasa ini sedang dalam solfataren stadium. Tetapi mengingat keadaan, bahwa sebuah lavaprop sudah mencapai ketinggian yang melebihi tingginya kraterand, dan mengingat akan kemungkinan adanya letusan diwaktu jad. yang bila terjadi tentu akan lebih hebat daripada letusan tahun 1949, karena lavaprop yang ada sekarang ini akan dilempar keluar dan sebagai akibat dari bahan-bahan ya…

The Eruptions of Mt. Api Siau During 1975

In January ash eruptions accompanied by strong detanations took place 3x, viz. on the 15th, 21.00 loc time on the 17th 06.05 loc time and on the 21st 17.55 loc time. Rumblings were often heard, sometimes lasting for several hours. Glares could be observed at night. The mechanical "Spindler & Hoyer" observatory seismograph with horizontal component recorded 30 earthquakes incl 16 felt.

The Eruptions of Mt. Lokon During 1975

During the months of January and February the activities which start ed since March 1974 still continued. A minor ash eruptions took place once. Thick bluish white ash column was discharged with moderated pressure until some 500 meters above the orator

The Submarine Flank Eruptions of Mt. Ili Werung in 1973 - 1974

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…

A Renewed Activity of ''Hobal Volcano'' (Mt. IlI 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…

The Eruption of Mt. Sirung from May untill June 1975

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.

The Eruptions Of Mt. Ili Boleng in March and June 1975

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.

Bulletin of the Volcanological Survey of Indonesia for the Period 1950 - 1957

Edisi

-

ISBN/ISSN

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Deskripsi Fisik

122 hlm. : ilus. ; 24 cm.

Judul Seri

Bulletin of the Volcanological Survey of Indonesia

No. Panggil

551.21 VOL No. 100

G. Krakatau 1953

Berisikan gambar - gambar mengenai aktivitas krakatau

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.