Former Philvolcs chief Punong bayan figured prominently in the Mt. Pinatubo situation.
Once in an interview, his view on landslide at mountains and the submerging of coastal areas in the future was asked.
He said that what is high will come down and what is low will be submerged.
That means that if you will have projects, or human settlement, you will avoid steep mountains and hills. And also lowlands.