The small islands of Hunga Tonga (upper right) and Hunga Ha'apai (left) are the peaks a large seamount located about 30 km SSE of Falcon Island. The two islands are about 2 km long. They have inward-facing cliffs that represent the W and N remnants of the rim of a largely-submarine caldera lying E and S of the islands. A shoal is visible 3.2 km SE of Hunga Ha'apai and 3 km south of Hunga Tonga and marks the most prominent historically active vent.

Aerial photo by Tonga Ministry of Lands, Survey, and Natural Resources, 1991 (published in Taylor and Ewart, 1997).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Keywords: island volcano | remote sensing

Hunga Tonga-Hunga Ha'apai