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The ‘Blue Fire’ gets its captivating colour when the sulphur gasses that are emitted from the crater burn.
Volcano tourism enthusiasts love to check out active or dormant volcanoes for educational, recreational, historical, or scientific purposes.
Hundreds of rescuers were deployed on Monday in the worst-hit villages of Sumberwuluh and Supiturang.
The plume from the volcano reached a height of 50,000 feet (15 km), said Japan's Meteorology Agency, which was monitoring for the possibility of a tsunami there.
The eruption Saturday was the latest in a series of spectacular eruptions from the Hunga Tonga Hunga Ha'apai volcano.
Semeru, the tallest mountain on the Java island erupted, over 1,300 persons were evacuated while nine remain unaccounted for.
The 15-meter high lava flow has already swallowed 20 houses in the village of El Paso and sections of roads, Mayor Sergio Rodriguez told TVE radio station on Monday morning.
Dormant since 1979, the volcano started showing signs of activity in December, spewing steam and smoke and rumbling away.
The study has also found that large volcanic events can lead to contrasting erratic weather patterns like droughts or excess rain.
The volcano shot ash 15 kilometers (nine miles) high in the January 12 eruption, which crushed scores of homes and killed livestock as well as crops.