The region is situated where the Philippine Sea Plate is sandwiched ... when the rocks in this particular fault zone are squeezed, they don't deform much in the other direction.

A restive volcano in central Philippines has briefly erupted, spewing a 2.8-mile ash plume and debris into the sky ...

6.6 earthquake along the nearby Masbate segment of the Philippine Fault Zone,” it explained. Also, Phivolcs said that the sulfur dioxide or SO2 emission from the volcano’s summit vents has ...