The Dead and the Gone by Susan Beth Pfeffer

We already know the damage. Asteroid hit moon, moon pushed closer to Earth, horrendous weather, massive death tolls, tremendous suffering. This time we see the devastation through the eyes of Alex Morales, a 17-year-old Catholic Puerto Rican American, living on the upper west side of New York City. He’s working the counter at Joey's Pizza the night of May 18th. That night, as Alex and sisters Bri (14) and Julie (12) climb into bed, they only know the electricity is out and that they are alone. Alex’s father is in Puerto Rico for grandmother’s funeral, his mother has been called to the hospital where she works—requiring her to take the subway to Queens, and his brother Carlos is a Marine stationed in California. They will have to wait until morning to learn of the moon and the resulting devastation. And their lives will only get more difficult as the days with no word from parents, no electricity, and dwindling food supplies stretch forward. Will the chaos of New York City consume the strength and faith Alex and the girls need to survive? Is it possible that they too will be among The Dead and the Gone?
This novel is a companion to the acclaimed Life As We Knew It.