Areas that are going to be affected will be the following according to the Philvocs are:

Batanes Group of Islands
Cagayan
Ilocos Norte
Isabela
Quezon
Aurora
Camarines Norte
Camarines Sur
Albay
Catanduanes
Sorsogon
Northern Samar
Eastern Samar
Leyte
Southern Leyte
Surigao del Norte
Surigao del Sur
Davao Oriental
Davao del Sur

This warning was issued right after a massive earthquake that hit the northeastern part of Japan Friday afternoon which was today.