This picture of Io shows the region of the Jovian moon which will be monitored for volcanic eruptions by Voyager 2 during the Io movie sequence.

This picture of Io, taken by Voyager 1, shows the region of the Jovian moon which will be monitored for volcanic eruptions by Voyager 2 during the 'Io movie' sequence. The white and orange patches probably are deposits of sulphur compounds and other volcanic materials. The Voyager 2 pictures of this region will be much more detailed.