Fig. 1.From: Caldera structure of submarine Volcano #1 on the Tonga Arc at 21°09′S, southwestern Pacific: Analysis of multichannel seismic profilingLocation map showing the Tonga Arc, the Kermadec Arc, the Tonga Trench, and the Kermadec Trench. V1 is Volcano #1 on the Tonga Arc. A and B are volcanoes with a summit caldera located adjacent to Volcano #1 (see Fig. 7 for bathymetry). The area is indicated by a rectangle in the inset.Back to article page