 The divergence of the Pacific Plate and the Gorda Plate has led to the creation of the Gorda Ridge.On the Pacific Plate, roughly 50 km west of the northern portion of the ridge, sit eight seamounts (underwater volcanoes), known as the President Jackson Seamounts.Roughly 30 Mya the Farallon Plate subducted beneath the North American Plate, segmenting the Pacific Farallon Ridge.