Answer:
The top ten provinces that are at risk to earthquakes are:
Surigao Del Sur
La Union
Benguet
Pangasinan
Pampanga
Tarlac
Ifugao
Davao Oriental
Nueva Vizcaya
Nueva Ecija
La Union and Pangasinan are prone to earthquakes, especially the deep-focused ones, due to the Manila Trench while Surigao del Sur and Davao Oriental have earthquake hazards due to Philippine Trench and nearby active faults. Frequency of shallow and left-lateral strike-slip earthquakes in Nueva Vizcaya, Nueva Ecija, Eastern Pangasinan, Benguet and La Union can be attributed to its location along the Philippine Fault Zone.
However, Ifugao, despite having less earthquake occurrences is at risk because of its very high vulnerability to disasters.
