Storm Nalgae has also forced tens of thousands of people to leave their homes and disrupted peak holiday travel in much of the nation.
"Our family shares the Filipino people's grief on this sad day."
Until now, the country had one of the world's lowest minimum ages of sexual consent, behind Nigeria's age of 11.
Typhoon Rai has killed at least 375 people.
Sara Duterte-Carpio is currently Mayor of Davao, the Philippines' third-largest city.
Abusing drivers over social media could also end in incarceration.
An arrest has been issued in the Philippines for the founder of notorious, lawless website 8chan.
They killed 57 people during their ambush on an election motorcade.