Mount Papandayan volcano in Indonesia erupted, killing almost 3,000 people.
Source
A mud volcano near Baku in Azerbaijan erupted.
A violent eight-month volcano eruption in Iceland started.
The second-largest volcano eruption of the 20th Century happened in the Philippines.
In Java, Indonesia, the Krakatoa volcano erupted and destroyed 70% of the island and its surroundings.
The Paluweh volcano in Indonesia erupted and claimed six lives.