1990 Luzon earthquake

The 1990 Luzon earthquake occurred on July 16 at 4:26 p.m. (PHDT) on the densely populated island of Luzon in the Philippines. The shock had a surface-wave magnitude of 7.8 and produced a 125 km-long ground rupture that stretched from Dingalan to Kayapa. The event was a result of strike-slip movements along the Philippine Fault and the Digdig Fault within the Philippine fault system.