São Jorge Island São Jorge Island São Jorge () is an island situated in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbors (Pico and Faial islands) by the Pico-São Jorge Channel, the central group is often referred colloquially as part of the "Triangulo" ("Triangle") group or just "The Triangle". São Jorge is a relatively long thin island with tall cliffs, whose 9500 inhabitants are concentrated on various geological debris fields ("fajãs") along the north and south coasts; from east to west, the island is long and, north to south, wide: its
Azores hotspot from Azores Plateau, which is an area of thickened oceanic crust and is thought to be formed from the Azores hotspot 20 Mya. This has been shown through mapping negative velocity S-wave anomalies beneath the Azores. This has shown that beneath the Azores Plateau there is a negative anomaly limited in the upper 250–300 km which is suggestive to be a signature to a present-day dying plume which would have created the Azores Plateau. The Mid Atlantic Ridge offers a different perspective and insight into hotspots. The ridge acts as a cross section through the mantle plume. Anomalies on the