Tony Miano's tweet read: "Praying 4 the lost souls in Nepal. Praying not a single destroyed pagan temple will be rebuilt & the people will repent/receive Christ."
.@CNN Praying 4 the lost souls in Nepal. Praying not a single destroyed pagan temple will b rebuilt & the people will repent/receive Christ.
— Tony Miano (@TonyMiano) April 25, 2015
It came after a 7.6 magnitude earthquake, which has killed more than 4350 people so far and left hundreds of thousands of people homeless.
Several people on Twitter reacted angrily to the remark, with one user saying: "Disgusting! Shame on you for having such thoughts when people are dying," and another saying: "Morally reprehensible to promote your religion at a time such as this."
Mr Miano has since defended his original tweet, saying: "There is NOTHING more loving I can do for my neighbour (including you) than to call people to repent/believe the gospel."
.@racheldevera @CNN There is NOTHING more loving I can do for my neighbor (including you) than to call people to repent/believe the gospel.
— Tony Miano (@TonyMiano) April 28, 2015
In 2013 he was arrested under Section 5 of the Public Order Act in Wimbledon, southwest London, when a passer-by complained he was using homophobic language in his street-preaching
Nepal is approximately 75% Hindu, with Buddhism making up around another 16%, and Christians, Muslims and other minorities making up the rest.