There are subduction zones outside oceanic plates: https://en.wikipedia.org/wiki/Subduction#/media/File:Global_subducted_slabs_USGS.png https://en.wikipedia.or

There are subduction zones outside oceanic plates: https://en.wikipedia.org/wiki/Subduction#/media/File:Global_subducted_slabs_USGS.png https://en.wikipedia.org/wiki/Subduction#/media/File:Global_...