The magnitude 6.4 quake struck the island July 29, killing at least 16 people, injuring 355 others and forcing more than 5,100 people from their homes.
The bishops said July 20 would be a day of prayer and fasting "as an act of atonement for the profanation carried out in recent months against God."
Catholic Relief Services is accepting donations for emergency relief.
"Abortion was wrong yesterday. It remains wrong today. The constitution has changed, but the facts have not."
"We must truly pray to the Spirit to change our hearts to better understand his will and to give us the strength to continue to work for justice and peace."
'What manner of insanity and sadism will make some people open fire on priests celebrating Mass in the house of God? '
Retired Rockville Centre Bishop William Murphy is part of the delegation.
Look back at the past five years and learn more about our Holy Father.
The president of the USCCB encouraged Catholics to join Pope Francis for a day of prayer and fasting for peace on Feb. 23.
Pope Francis said the Italian and English translations of the "Our Father" can give believers the wrong impression that God leads people into temptation.