But... Numidium was at Red Mountain.
Sermon 36:
Dwemeri high priest Kagrenac then revealed that which he had built in the image of Vivec. It was a walking star, which burnt the armies of the Triune and destroyed the heartland of Veloth, creating the Inner Sea.
Each of the aspects of the ALMSIVI then rose up together, combining as one, and showed the world the sixth path. Ayem took from the star its fire, Seht took from it its mystery, and Vehk took from it its feet, which had been constructed before the gift of Molag Bal and destroyed in the manner of truth: by a great hammering. When the soul of the Dwemer could walk no more, they were removed from this world.
Resdaynia was no more. It had been redeemed of all the iniquities of the foolish. The ALMSIVI drew nets from the Beginning Place and captured the ash of Red Mountain, which they knew was the Blight of the Dwemer and that would serve only to infect the whole of the middle world, and ate it. ALTADOON DUNMERI!
The beginning of the words is ALMSIVI. I give you this as Vivec.