Was the north plate and the pacific plate involved with Yellowstone eruption?

No, the North American Plate and the Pacific Plate are not directly involved with the Yellowstone eruptions. Yellowstone's volcanic activity is primarily due to a hotspot located beneath the North American Plate. As the plate moves over the stationary hotspot, it creates volcanic activity, leading to the eruptions that have formed the Yellowstone caldera. The interaction between the North American Plate and the Pacific Plate is more relevant to tectonic activities along the west coast, but not specifically to the Yellowstone eruptions.