I think it was the explosion of Krakatoa - a volcanic explosion.
A volcanic explosion is an eruption.
You spelled volcanic explosion correctly in the question, though volcanic eruption might be preferred.
IndonesiaHope this helps
An eruption.
The world's loudest volcanic explosion in 1883 occurred in Indonesia when the island of Krakatoa erupted and blew itself apart. The explosion was so powerful that it was heard over 3,000 miles away and caused massive tsunamis that devastated surrounding coastlines.
An eruption.
The biggest explosion in history was the detonation of the Hydrogen bomb in the Bikini Atoll in the 1950s.
The loudest volcanic explosion in recorded history was one produced during the 1883 eruption of Krakatoa. This volcanic island, which collapsed into the sea after the eruption, was located between Java and Sumatra in Indonesia.
bootyjuice
Krakatoa is the greatest volcanic explosion recorded in Indonesia
Indonesia. There are loads of variations of this question in here !