Bali volcano Mount Agung erupted on Saturday launching ash 4,000m (13,100 feet) into the skyline after months of seismic activity.
Mount Agung appears to be on the brink of an even larger and more destructive eruption as it spews out dangerous cold lava.
Thousands of residents have been forced to leave their homes and hundreds of flights have been cancelled leaving people stranded in Bali.
The Bali volcano can be seen in the live webcam, and fears have been raised that another eruption could be catastrophic.
Nasa has warned that global temperatures could be impacted by a big eruption, which can sometimes change global rainfall patterns.
NASA climate scientist Chris Colose said: “To have a notable climate impact, there needs to be an explosive enough eruption (to get material in the stratosphere) and a sulphur-rich eruption (the SO2 converts to sulphate aerosol, which is what radiatively matters).
“If these conditions are met, the eruption cools the surface/troposphere and warms the stratosphere, the opposite of both patterns associated with CO2 increases. But both are very short-lived (years).”
Volcanoes emit carbon dioxide, which traps heat, but they also spray out ash particles and gases such as sulphur dioxide, which form compounds that reflect sunlight, and therefore cooling the planet.
Indonesia’s National Disaster Management Authority (BNPB) warned on Tuesday that eruptions are increasing and declared the highest alert level for the volcano.
The island was rocked by an earthquake of magnitude 3.1, which occurred near the volcano, as Mount Agung’s eruption nears. The earthquake happened at 7:17pm local time near the area of Karangasem.
Bali governor I Made Mangku Pastika has also extended a state of emergency on the island until at least December 10 as it braces for a huge eruption.
Around 100,000 residents were told to flee the 10km evacuation zone around the volcano, but thousands have refused to abandon their homes.
Thousands of people were also left stranded on the island after the giant ash cloud was sent into the air.
Some passengers are facing delays of up to a week as Bali’s main airport works through a backlog of stranded tourists.
The British Government has urged nationals in Bali to heed the advice of authorities and stay out of Mount Agung’s danger zone.
“The Foreign and Commonwealth Office (FCO) advise against all travel to within 10 kilometres of Mount Agung in East Bali due to ongoing volcanic activity,” the Government’s travel advice page said.
“This area is mostly covered by an existing exclusion zone put into place by the local authorities, which extends between 8 and 10kms from the crater. If you’re in this area, you should leave immediately.
“Volcanic activity may increase in the coming days.”
Mount Agung’s last eruption, in 1963, left more than 1,000 people dead and destroyed several villages.