In this late Monday, Oct. 13, 2014 photo made with a slow shutter speed, lightning caused by volcanic materials containing electric charges that collide into each other is seen as Mount Sinabung erupts in Jeraya, North Sumatra, Indonesia. Mount Sinabung, among about 130 active volcanoes in Indonesia, has sporadically erupted since 2010 after being dormant for 400 years. AP Photo/Binsar Bakkara