ASSOCIATED PRESS
People inspect buildings damaged by a flash flood in West Sumatra, Indonesia

At least 43 people have been confirmed dead after hours of rain triggered flash floods and cold lava flow from Mount Marapi volcano in West Sumatra over the weekend.

Rescuers are searching for survivors of flash floods in rivers and the rubble of destroyed villages, with at least 17 people still missing.

Over the weekend, monsoon rains and a landslide of mud and cold lava from Mount Marapi caused rivers to burst their banks.

The mudslide tore through mountainside villages in four districts in West Sumatra province just before midnight on Saturday.

Aerial photo of the damage caused by a flash flood in Tanah Datar, West Sumatra.
People examine the damage at an area badly affected by a flash flood in Tanah Datar, West Sumatra, Indonesia. CREDIT: ASSOCIATED PRESS

20,000 homes across 9 districts in West Sumatra have been flooded up to their roofs.

According to Indonesia’s National Disaster Management Agency, the floods have swept people away and submerged more than 100 houses and buildings.

More than 80,000 people are believed to have fled to temporary government shelters.

Aerial photo showing the damage caused by a flash flood in West Sumatra.
Drone photo showing the damage caused by a flash flood in a village in West Sumatra, Indonesia. CREDIT: ASSOCIATED PRESS

Indonesia has more active volcanoes than any other country in the world, a total of 130.  At least 5 million people across the nation live in lose proximity to active volcanoes.

Mount Marapi is one of the country’s most active volcanoes, and has erupted 11 times this century.

Around 250,000 people live within Mount Marapi’s 10 kilometre radius.

Indonesia straddles a series of seismic fault lines around the Pacific Ocean, known as the “Ring of Fire”, making the nation prone to volcanic activity.

In the last 10 years, there has been an average of 15 eruptions each year in Indonesia, according to the country’s National Disaster Mitigation Agency.

Mount Marapi spewing volcanic material after a volcanic eruption.
Mount Marapi spewing volcanic material from its crater during an eruption. CREDIT: ASSOCIATED PRESS