Solar Corona in Zamboanga City Desk man July 10, 2013 A solar corona wows local residents in Zamboanga City in southern Philippines. Corona is produced by the diffraction of light from the sun by water droplets of a cloud. (Mindanao Examiner Photo – Alvin Lardizabal) 20 Continue Reading Previous: Twin blasts hit Cotabato CityNext: Zamboanga mayor prioritizes security