A dramatic photo of a volcano erupting has won the 13th annual Smithsonian magazine photo contest. The judges chose Albert Ivan Damanik's shot of ash clouds billowing out of Indonesia's Mount Sinabung from more than 46,000 submissions from photographers in 168 countries and territories, with eight other winners in categories including Mobile, Altered Images and Sustainable Travel.

Smithsonian Photo Contest
Grand Prize winner: Remaining on the Slopes of Mount Sinabung by Albert Ivan Damanik. Volcanic material flows from Mount Sinabung, as seen from the village of Jeraya, North Sumatra, Indonesia on 26 June 2015. Mount Sinabung intermittently spewed burning ash and gas a week after authorities told residents to evacuate the danger zone that lay with within a radius of 4.4 miles from the crater.\" Albert Ivan Damanik

Photographers were invited to submit images in seven categories: Natural World, The American Experience, Travel, People, Altered, Mobile, and Sustainable Travel. Smithsonian readers were invited to choose their favourite image, and Alice van Kempen's image of her bull terrier, Claire, in an abandoned train received the highest percentage of nearly 40,000 reader votes, earning her the Readers' Choice award.