By the time of Borlongan 's graduation , the Philippines ' socioeconomic and political climate was still tumultuous . 1987 saw the national trauma that was the Mendiola massacre , and numerous coups d'état threatened the new government of Corazon Aquino from 1986 to 1989 . Massive destruction from natural disasters took the form of the 1990 Luzon earthquake and the 1991 Mt Pinatubo Eruption , and crippling power outages dampened the Philippine economy
1990 Luzon earthquake
1990 Luzon earthquake
Elmer Borlongan