1992 in the Philippines details events of note that happened in the Philippines in the year 1992. Incumbents President Corazon Aquino (PDP-Laban) (until June 30) Fidel V. Ramos (Lakas) (starting June 30) Vice President Salvador Laurel (UNIDO) (until June 30) Joseph Estrada (NPC) (starting June 30) Senate President Jovito Salonga (until January 1) Neptali Gonzales, Sr. (starting January 1) House Speaker Ramon Mitra, Jr. (until June 30) Jose de Venecia, Jr. (starting July 27) Chief Justice: Andres Narvasa Philippine Congress 8th Congress of the Philippines (until June 17) 9th Congress of the Philippines (starting July 27) Events January January 2 – The tailings dam breaks at Number Two tailings storage facility of Philex Mining Corporation's Padcal mine in Benguet Province, releasing 80 million cubic metres of effluent, probably the largest tailings spill in history. January 7 – Former First Lady Imelda Marcos is arrested and later released on charges regarding her accounts in Switzerland. January 15 – Pag-asa is hatched in Davao City becoming the first Philippine eagle to be successfully bred and hatched in captivity. February February 15 – At least 41 are killed and 24 are wounded when New People's Army guerrillas ambush a large company of army troops in Marihatag, Surigao del Sur. March March 10 – Five students of PUP are found floating in the Pasig River after an altercation during a basketball game involving INC members. May May 11 – Synchronized national and local elections are held. May 25 – In PepsiCo's promotion Number Fever, the winning number "349" is announced with a million-peso prize; however, an error causes more than 600,000 winners; several violent incidents followed. By following year, about 22,000 people filed more than five thousand lawsuits against Pepsi, outnumbering those against former Pres. Ferdinand Marcos and Imelda Marcos. In 2006, a court would rule in favor of Pepsi. June June 30 – Former defense secretary Fidel Ramos and former senator Joseph Estrada swear in as the 12th President and 11th Vice President of the Philippines, succeeding Corazon Aquino and Salvador Laurel. September September 22 – Pres. Ramos signs Republic Act 7637, which repeals the Anti-Subversion Act of 1957. September 30 – US forces leave Subic Bay Naval Base upon its turn over to the Philippines. November November 24 – Subic Bay Naval Base closes as it is turned over to the local government, with a last batch of American soldiers finally leaving