Batu Tara activity 30 June - 4 July 2015: video clips

Early on 3 July 2015, a rare and spectacular pyroclastic flow occurred at Batu Tara volcano that traveled approx. 150 m over the sea. It was caused by the collapse of the eruption column and accumulated loose material on the crater rim, following a strong, mass-rich explosion from the volcano.
Video taken by Martin Siering (, one of the participants on our recent expeditions to Batu Tara volcano.

Videos below: (c) Tom Pfeiffer

Above: compilation of rockfalls (typically preceding explosions) and two small to moderate, typical strombolian eruptions from Batu Tara.

The next video shows a strong strombolian explosion with many incandescent ejecta on the evening of 2 July 2015. The eruption is preceded by a gradual build-up with increasing degassing and rockfalls as a result of inflation of the crater. Immediately before the explosion, glow becomes visible as the magma is about to break through the crust sealing the vent.

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