LOS ANGELES—A 27-year-old man was charged Saturday with illegally transporting tons of explosives he purchased in Nevada—including several that left a trail of destruction and injuries after they blew up in a Los Angeles neighborhood. Arturo Ceja III faces the federal charges, according to the U.S. Attorney’s office in Los Angeles. Seventeen people were hurt Wednesday—including nine Los Angeles police officers and a federal agent—in the blast, which also flipped and damaged cars and smashed windows in homes and a laundromat. The explosion was heard blocks away. Ceja “made several trips to Nevada in late June to purchase various types of explosives—including aerial displays and large homemade fireworks containing explosive materials—that he transported to his residence in rental vans,” the U.S. Attorney’s Office said in a statement. He bought most of his explosives from a fireworks dealer in Parhump, Nevada, according to the criminal complaint against him. Fireworks in California …