The document indicated Bloom initially denied the allegations but later admitted to the crimes, the news site said. An editor's note on ExploreClarion.com said more specific details of the alleged crimes were withheld due to their graphic nature.
Warrants were issued for his arrest Jan. 16, but he had already fled the area.
Pennsylvania law states that 648 of the charges against Bloom are first-degree felonies, for which he faces up to 20 years in prison for each count. He faces up to 10 years for each count of statutory sexual assault and up to seven years for endangering the welfare of a child.
Bloom faces more than 15,000 years in prison if convicted.