Global Volcanism Program | Image GVP-11076
Amsterdam Island has an asymmetrical profile as seen from the SSE in this plate from the SMS Gazelle expedition. The broad area left of the summit of the island is the remnant of a paleo-caldera; cliffs to the left expose remnants of the Fernand paleo-volcano. Deposits from a younger volcano cover most of the island, and more than two dozen cones occur on its flanks.
Plate from the SMS Gazelle expedition (courtesy of NOAA Photo Library).
This image is made available as a Public Domain Work, but proper attribution is appreciated.