Indonesia's Mount Merapi erupted twice on Sunday, June 21.

The country's geological agency said the two eruptions lasted around seven minutes.

The eruptions sent clouds of grey ash 6,000m into the sky and covered towns with heaps of fine particles reducing visibility.

A video uploaded online compiled footage of the lived experiences of Indonesians within the mountain's volcanic range.

Mount Merapi is one of the world's most active volcanoes.

Local authorities ordered residents to stay outside a 3km no-go zone around the rumbling crater near Indonesia's cultural capital Yogyakarta.

The agency did not raise the volcano's alert status after the eruptions though.

Commercial planes have been advised to be cautious in the area.

People in neighbouring areas, including Sleman and Klaten, heard strong rumbling sounds in the morning.

Mount Merapi's last major eruption in 2010 killed more than 300 people.

Some 280,000 residents from surrounding areas were forced to evacuate.

That was its most powerful eruption since 1930, which killed around 1,300 people.

An explosion in 1994 took about 60 lives.

Indonesia sits on the Pacific "Ring of Fire".

It has nearly 130 active volcanoes and more than 17,000 islands and islets.

The vast zone of geological instability in the region is where the collision of tectonic plates causes frequent quakes and major volcanic activity.