The Rift volcano isn't anywhere near the size of the Red Mountain volcano in the area it covers either.
Red Mountain is just the tip of a massive volcanic region that encompasses the whole of Vvardenfell. There's evidence of severe volcanic activity throughout that region and beyond. The forces at work beneath Vvardenfell are unparalleled, the Inland Sea in which Vvardenfell lies is actually a massive impact crater which indicates that the planet's crust is severely compromised in that region.
But yes, the Rift Volcano is a supervolcano much like Yellowstone. And it will give a massive eruption when it blows, because of the fact that the volcano has no (evident) way of dissipating volcanic pressure.
Red Mountain is just the tip of a massive volcanic region that encompasses the whole of Vvardenfell. There's evidence of severe volcanic activity throughout that region and beyond. The forces at work beneath Vvardenfell are unparalleled, the Inland Sea in which Vvardenfell lies is actually a massive impact crater which indicates that the planet's crust is severely compromised in that region.
But yes, the Rift Volcano is a supervolcano much like Yellowstone. And it will give a massive eruption when it blows, because of the fact that the volcano has no (evident) way of dissipating volcanic pressure.
There are a few gas vents in the region, but that is to be expected from any volcanic region.
I honestly don't think it's that far out from an Eruption. The signs are there. Areas where the ground has uplifted to form hills, many steam and gas vents, numerous hydro-thermal areas, and the rumbling that you can hear when in the region.