Spine-chilling footage of the eruption on Monday shows the volatile volcano spewing clouds of hot gas down its slopes forcing thousands of locals to flee for safety.
The erupting lava dome at the disintegrated summit is believed to have held 1.6 million cubic metres of lava.
Fears are now growing for the safety of the island, but Sinabung is not the only volcano threatening the Pacific archipelago.
Sinabung is in fact just one of three erupting volcanoes in a chain of more than one hundred active ones.
How many active volcanoes are there in Indonesia?
There are a total of 147 volcanoes spread over Indonesia’s picturesque archipelago of 13,000 Pacific islands.
Out of the 147, 120 of these dangerous mountains are currently active and three are in a state of eruption right now.
The ones erupting are Mount Sinabung on the island of Sumatra, Mount Agung on the island of Bali and Mount Merapi on central Jawa.
The volatile chain of volcanoes covers an area similar in size to the continental United States, according to Volcano Discovery.
Because of this, Indonesia is the single densest and most active volcanic region in the world.
Indonesia is home to nearly 150 volcanoes – 120 of which are currently active
The volcano tracker said: “Indonesia leads the world in many volcano statistics.
Indonesia has suffered the highest numbers of eruptions producing fatalities, damage to arable land, mudflows, tsunamis, domes, and pyroclastic flows
“It has the largest number of historically active volcanoes (76), its total of 1,171 dated eruptions is only narrowly exceeded by Japan’s 1,274, although not much is know about the volcanic activity in the time before European colonialists arrived from the 15th century on.
“Indonesia has suffered the highest numbers of eruptions producing fatalities, damage to arable land, mudflows, tsunamis, domes, and pyroclastic flows.”
Two of the most devastating volcanic eruptions in the history of mankind occurred in Indonesia only 70 years apart.
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Then in 1883, the monstrous eruption of Krakatoa in the Sunda Strait, indirectly killed 30,000 to 40,000 people with deadly tsunamis.
What is the Pacific Ring of Fire?
The Pacific Ring of Fire is the hotbed of the world’s volcanic activity and earthquakes zones.
The Ring of Fire runs along the rim of the Pacific Ocean Basin, stretching from the US West Coast to Asia.
The Pacific Ring of Fire is the world’s hotbed of volcanic activity and earthquake tremors
The US Geological Survey Earthquake Hazards Program explains: “The ‘Ring of Fire’, also called the Circum-Pacific belt, is the zone of earthquakes surrounding the Pacific Ocean – about 90 percent of the world’s earthquakes occur there.
“The next most seismic region (5 – 6 percent of earthquakes) is the Alpide belt (extends from Mediterranean region, eastward through Turkey, Iran, and northern India.)”
Roughly 90 percent of the world’s earthquakes occur in this 40,000 km-long horseshoe zone.
More than 400 volcanoes are found in this part of the globe and they account for more than 75 percent of the world’s active and dormant volcanoes.