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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.
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