That is not PHIVOLCS' job, that is the job of the LGU and the DILG and the PCOO.
We tend to NOT vote for the smartest candidates these days, and vote on those who have appeal to the masses instead or are entrenched oligarchies. This results in local government officials with a science aptitude way below that of an average high school student in the EU.
Case in point: the Mayor of Tacloban during Yolanda, Alfred Romualdez,
brought his family to a beach resort where the
strongest typhoon in recorded history was about to make landfall. Imagine how many lives could have been saved had he ordered a mandatory evacuation instead.