Volund
What Volund is
Volund is an eruptive center — the active source of an eruption — on Io, 427 km across, centred at 29.3° N, 171.8° W. It is the 24th largest named feature on Io and the 3rd largest of its class there.
Where the name comes from
Germanic supreme smith of the gods. The International Astronomical Union approved the name in 1979, under the theme it applies to every eruptive center on Io. Of the 8 features of this class catalogued on Io, the naming categories run Japan (1), Greek (1), Germany (1), Georgia (1).
What it would take to settle Volund
Io scores 76.7 as a world. That number is the same for every square metre of it — but sunlight, water, radiation and the ground under your feet are not. This is the same question asked at 29.3° N, 171.8° W.
What this spot has going for it is sunlight — 87% of the sunlight the sunniest latitude on Io gets. What works against it is water — same as everywhere else on this world.
Computed from Volund's catalogued latitude, longitude and feature class — 84% of the model's weight had a basis here, and 2 axes were dropped as not applicable to Io (earth link, known ground). Gravity, pressure, delta-v and distance from the Sun are the same everywhere on Io and are already counted in the world's own index, not again here.
What this cannot see: elevation. Slope, local shadowing and the polar “peaks of eternal light” — ridge tops near the poles of a barely tilted world that catch sun almost continuously while a crater floor kilometres away never does — need a terrain model this does not have. Where a real mission targets a pole, that is usually why.