Starting in September, Indonesia's Mount Sinabung began erupting yet again. In the days that followed, ash and smoke were shot into the air multiple times. As a result, nearby towns turned gray from repeated blows by the volcano.

A woman and her daughter flee their home as Mount Sinabung erupts in Karo, North Sumatra, Indonesia, Tuesday, September 17, 2013. (Photo by Binsar Bakkara/AP Photo)

Students walks between chilli trees covered by ash from Sinabung Mount as they return home at Kuta Rakyat village in Karo district, Indonesia's north Sumatra province November 8, 2013. (Photo by Roni Bintang/Reuters)

Indonesian farmers rush to harvest crops in the district of Karo as an ash cloud rises during a fresh eruption of the Mount Sinabung volcano, on September 17, 2013. (Photo by Sutanta Aditya/AFP Photo)

A villager watches Mount Sinabung spewing volcanic materials as it erupts in Tepu Pancur, North Sumatra, Indonesia, Sunday, November 10, 2013. The rumbling volcano has forced more than 1,000 people living on its slopes to relocate to temporary shelters amid fears of major eruptions. (Photo by Binsar Bakkara/AP Photo)

An Indonesian farmer works in her field at Kuta Rakyat village after Sinabung volcano erupted several times recently, in Karo on November 8, 2013. (Photo by AFP Photo/ATAR)

Indonesian motorists wear masks while passing through an area covered by thick ash as Sinabung volcano continues spewing volcanic materials and thick smoke into the air in Karo on November 9, 2013. About 1,710 people have been evacuated since Mount Sinabung in western Indonesia spectacularly erupted, according to Indonesia's Disaster Mitigation Agency. (Photo by AFP Photo/ATAR)

Mount Sinabung spews volcanic materials as villagers board a truck to flee their homes following its eruption in Karo, North Sumatra, Indonesia, Sunday, September 15, 2013. (Photo by Binsar Bakkara/AP Photo)

Indonesian school boys walk past plants covered by ash from Sinabung volcano after it erupted several times recently, in Karo on November 8, 2013. (Photo by AFP Photo/ATAR)

A flower peeks out from plants covered with ash from the eruptions. (Photo by Binsar Bakkara/Associated Press)

A man uses his mobile phone as Mount Sinabung continues to erupt, with hot smoke spewing from the volcano, in the Karo district on the north of Indonesia's Sumatra island on November 18, 2013. Officials said a week ago at more than 5,000 people had fled their homes since the volcano erupted early this month. (Photo by Sutanta Aditya/AFP Photo)

Motorists wear masks while passing through an area covered by ash after Mount Sinabung erupted, spewing ash and lava 2.5 miles into the sky. (Photo by Ulet Ifansasti/Getty Images)

Bowls and cups covered by ash on November 21 are seen at an abandoned house in Mardinding village, located less than three kilometers from Mount Sinabung. (Photo by Ulet Ifansasti/Getty Images)

The 8,530-foot high volcano tsrating erupting in late September and has become increasingly more active. (Photo by Binsar Bakkara/Associated Press)

Schoolchildren walk on a road between fields covered with volcanic ash. (Photo by Binsar Bakkara/Associated Press)

Mount Sinabung spews smoke, seen from Tiga Pancur village. (Photo by Ulet Ifansasti/Getty Images)

An ash covered man works at a coffee plantation in Guru Kinayan village, located less than three kilometers from Mount Sinabung. (Photo by Ulet Ifansasti/Getty Images)

A hand print is seen on the hood of a car covered with volcanic ash from the eruption of Mount Sinabung, in Tiga Nderket village on November 4, 2013. (Photo by Binsar Bakkara/Associated Press)

Students sweep volcanic ash off the floor of their classroom at an elementary school in Tiga Nderket. (Photo by Binsar Bakkara/Associated Press)

A man walks on a road near an ash-covered roof in Mardingding village after residents were evacuated on November 19, 2013. (Photo by Roni Bintang/Reuters)

A woman in Sibintun village looks on as Mount Sinabung spews ash. (Photo by Roni Bintang/Reuters)