Pampanga is composed of 19 municipalities and three cities with 538 barangays. Its land area is 2,180.68 square kilometres. Its terrain is relatively flat and best suited for agriculture. Pampanga is one of the Central Luzon provinces comprising the Rice Granary of the Philippines. Agriculture, however, is in danger of deterioration due to massive illegal land conversion. The province’s devastation from Mount Pinatubo's eruption in 1991 resulted in the collapse of its economy and displacement of many communities. A total of 3,939 hectares were buried under tons of volcanic debris rendering them unproductive. Its proximity to the National Capital Region (Metro Manila) and strategic location have contributed to its quick economic recovery. PDI is in two municipalities: Angeles (Barangay Margot) and Magalang (Barangay Sto. Rosario).