<P> The Philippine Fault Zone ( PFZ ) extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea Plate . This left - lateral strike - slip fault extends NW - SE ( N30 -- 40 W ) accommodating the lateral oblique motion of the subducting Philippine Sea Plate with respect to the Philippine Trench . It extends from Davao Gulf in the south , bisects the Caraga region at the Agusan River basin , crosses to Leyte and Masbate islands , and traverses Quezon province in eastern Luzon before passing through Nueva Ecija up to the Ilocos region in northwest Luzon . The northern and southern extensions of the PFZ are characterized by branching faults due to brittle terminations . These horsetail faults are indicative of the lateral propagation and further development of the PFZ . The fault 's current activity can be observed in Holocene sandstone outcrops on the Mati and Davao Oriental islands . The fault experiences a slip rate of approximately 2 - 2.5 cm / year . </P>
<P> The Philippine Fault Zone ( PFZ ) extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea Plate . This left - lateral strike - slip fault extends NW - SE ( N30 -- 40 W ) accommodating the lateral oblique motion of the subducting Philippine Sea Plate with respect to the Philippine Trench . It extends from Davao Gulf in the south , bisects the Caraga region at the Agusan River basin , crosses to Leyte and Masbate islands , and traverses Quezon province in eastern Luzon before passing through Nueva Ecija up to the Ilocos region in northwest Luzon . The northern and southern extensions of the PFZ are characterized by branching faults due to brittle terminations . These horsetail faults are indicative of the lateral propagation and further development of the PFZ . The fault 's current activity can be observed in Holocene sandstone outcrops on the Mati and Davao Oriental islands . The fault experiences a slip rate of approximately 2 - 2.5 cm / year . </P>
what are the active fault line in the philippines
what are the active fault line in the philippines
extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea Plate .
extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea Plate .