On the 28th of September 1965, Taal Volcano in the province of Batangas, Luzon Island, erupted at its southwestern flank after a quiescent period of 54 years. This was followed by other eruptions in July 1966, August 1967, and February-March, 1968. Then Mayon Volcano in the southeastern part of Luzon also erupted in April, 1968,. after a repose of 21 years. A few months later, just before dawn on August 2, 1968 Luzon Island was rocked by a very strong and destructive earthquake. In Manila, the quake damaged some buildings and caused a six-storey apartment building to collapse completely. More than 300 persons perished in that tragedy.