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.

The Eruptive Activities of Mt. Marapi (W-Sumatra) During 1975

In January this volcano showed increasing activity. On the 22nd, 06. 15 loc, time, B crater emitted rather thick white smoke with strong gas pressure until 300 meters high. This phenomenon lasted almost continuosly from morning until evening. A moderate eruption took place at C crater on the 30th, discharging thick turbulent black ash cloud with strong pressure untill 500 meters high.

The Eruptive Activities and Associated Phenomena Of Mt. Merapi (C - Java) Dur…

During the month of January the growth of lava dome continued slowly. From time to time at night glares above the dome could be observed. On January 15 a lava avalanche entered the upper course of R. Batang. In February the growth of lava dome seemed to cease completely.

The Rise and Drop Of MT. Kelut Crater Bottom After Paroxysmal Eruptions

From the last two eruptions of Mt.Kelut, i.e. in 1951 and 1966, remarkable changes of the crater bottom were recorded. After the 1951 eruption a lowering of 79 m and after the 1996 eruption up upheaval of 43 m was found to have taken place, as measured at the deepest sections of the crater.

The Eruptive Activities of Mt. Semeru during 1975

n January gas explosions often occurred, ejecting incandescent lava fragments, while eruption clouds rose 1 kilometer above the summit. From Argosuko Obs. (S) reddish glares on the peak of the lava dome could be often observed, while from Gunung Sawur (ESE) and Tawonso ngo (ENE) Observatories they were seen only a few times.

The Eruptive Activities of Mt. Semeru during 1975

Edisi

-

ISBN/ISSN

-

Deskripsi Fisik

-

Judul Seri

-

No. Panggil

-

The Explosive Activities Of Mt. Raung From March Until May 1975

In january thin white smoke was enmitted with pressure. A medium scale discharge of smoke until 75 meters above the craterrim took place once and was repeated 4 x during february.

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…

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…

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.