Province of the Azores sub-prefects. The Province of the Azores was abolished on 28 June 1833 by Decree 64, which divided the archipelago into two separate provinces: the Província Oriental dos Açores (Eastern Province of the Azores), that included the islands of São Miguel and Santa Maria, with its capital in Ponta Delgada; and the Província Ocidental dos Açores (Western Province of the Azores), with its capital in Angra and administrating the remaining islands of the archipelago. Prefect: Sub-Prefect of Ponta Delgada: Sub-Prefect of Horta: Province of the Azores The Province of the Azores was an administrative unit of Portugal encompassing the archipelago of
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