Brothers volcano viewed from the northwest, looking to the southeast. Depths range from 1200 to 2600 meters (3940 - 8525 feet). The resolution of the bathymetry data is 25 meters. The image is two times vertically exaggerated. The caldera size, from rim to rim, varies from 3 - 4 kilometers (~2 nautical miles). The bathymetry data are courtesy of New Zealand National Institute of Water and Atmospheric Research (NIWA). Fly-through movie courtesy of the NOAA Vents Program.