A 46-year-old Harlem woman on Monday became the first to sue over last week’s apparent gas explosion that brought down two apartment buildings, filing in Manhattan Supreme Court against Con Edison and the owner of one of the property owners for injuries she says she sustained more than a block away from the blast.

A 20-year-old high school student also filed paperwork Monday to potentially sue the city for $10 million after the impact from the collapse threw him from his seat on a city bus passing the blast site.

“The force of the explosion was so powerful that windows on the bus shattered,” West Side High School student Jose Vargas says in his notice of claim.

Vargas was riding the M116 bus on W. 116th Street at 9 a.m. when he was “lifted off his seat and thrown against the interior of the bus.”

He was rushed to Mt. Sinai hospital and treated for torn ligaments and busted blood vessels.

His attorney, Robert Vilensky, said, the city is responsible for protecting people and officials should have inspected the over 125-year-old gas lines.

The Harlem woman, Michelle Nelson, says she was in her apartment at 12 E. 116th St. – more than a block away from the site of the building collapse at 1646 Park Ave. — when she fell and “sustained severe and permanent injuries,” according to her Manhattan civil suit.

She accuses the utility company and 1646 Park Ave. landlord Kaoru Demler Muramatsu of neglecting their “duty to keep…the premises in a safe, proper and secure manner,” according to court papers.

Nelson is seeking unspecified damages.

“We’re working with the City, the Salvation Army and the Red Cross to assist the affected families with their expenses in the wake of the tragedy. We haven’t received the complaint but we’ll review it when it arrives,” said Con Ed spokesman Bob McGee.

Muramatsu did not immediately return calls seeking comment.