Jakarta: Indonesia is witnessing a series of volcanic eruptions in the Sunda Strait. Anak Krakatau volcano has already erupted seven times in the last two days.
It is located far from the densely-populated Java island and Sumatra island but is close to the busy shipping line connecting the islands.
The erupting volcano is currently graded at level three of a four-tiered volcanic alert system. The seismic activity of the volcano started going up two weeks ago. People are asked to stay out of a five-km exclusion zone around the volcano.
Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) said the volcano has unleashed hot ash up to some 1,500 metres high into the sky.
The young volcano has been subject to extensive study as experts are curious about its age and activity.
Anak Krakatau, the volcanic island, emerged from the sea on 29 December 1927. It formed in the caldera formed in 1883 by another volcanic eruption that destroyed the island of Krakatoa. A caldera is a large depression formed when a volcano erupts and collapses.
Named the Child of Krakatau in the local language, the volcano has shown activity in irregular intervals. A large underwater collapse of the volcano caused a deadly tsunami in December 2018. A report released earlier this year said the collapse of the volcano was the result of a long-term destabilising process and not triggered by distinct changes in the magmatic system.