Why might the 1990 earthquake and 1991 volcanic eruption in Luzon be related?

The 1990 earthquake and the 1991 volcanic eruption in Luzon, Philippines, may be related due to the tectonic activity in the region. The earthquake, which registered a magnitude of 7.8, likely altered subsurface pressures and geological conditions, potentially triggering volcanic activity. Both events occurred along the convergent boundary where the Philippine Sea Plate interacts with the Eurasian Plate, highlighting the interconnected nature of tectonic processes. This relationship underscores how seismic events can influence volcanic behavior in tectonically active areas.