Authorities in Indonesia say they are preparing for the worst case scenario after Mount Sinabung erupted 77 times over the weekend.

The National Disaster Mitigation Agency has now instructed all relevant government ministries and the Karo regency administration in North Sumatra to prepare for the worst after the volcano increased in activity, displacing 20,000 people.

20140106 Sinabung at night
Mount Sinabung volcano spews ash and lava as seen from Erajaya village in Karo district, Indonesia's North Sumatra province, in the early early morning of January 6, 2014. About 20,000 villagers have been evacuated since authorities raised the alert status for Sinabung to the highest level in November 2013.Reuters
20140106 sinabung bus
A public bus travels between trees covered by ash from Mount Sinabung volcano at Tiga Pancur village on January 6, 2014Reuters
20140106 sinabung motorbike
A villager riding a motorcycle covers his face with a plastic sheet to avoid ash from Mount Sinabung volcano on January 6, 2014Reuters
20130106 sinabung clouds of ash
Mount Sinabung volcano spews ash during an eruption as seen from Tiga Pancur village in Karo district, on January 6, 2014Reuters
20140107 sinabung chilli
Dead chilli plants are pictured covered in ash from Mount Sinabung at Sibintun village, on January 7, 2014Reuters
sinabung map
A map showing the location of Mt Sinabung (marked with a red pin)Google
20131129 ash roof
A woman cleans the roof of her house from ash spewed from Mount Sinabung at Mardinding village in Karo district,on November 29, 2013Reuters
20131126 sinabung flower
A flower blooms as leaves are seen covered by ash from Mount Sinabung at Sukanalu village in Karo district, Indonesia's North Sumatra province, on November 26, 2013Reuters
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Ash from Sinabung volcano covers trees and houses at Mardingding village in Karo district, on November 5, 2013Reuters
20131118 sinabung ash
A woman watches as Mount Sinabung spews ash, as pictured from Sibintun village in Karo district, Indonesia's north Sumatra province, on November 18, 2013
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Children wear masks to protect against volcanic ash in the air during lessons at a school in the Berastagi village of Karo district, Indonesia's North Sumatra province, on September 20, 2013Reuters
20130918 sinabung lightning
Lightning strikes as Mount Sinabung volcano spews ash and hot lava, on September 18, 2013Reuters