Video has emerged of people huddled together on the 38th floor of a building in Mexico City with ceiling lights swinging from side to side, as a magnitude 7.1 earthquake struck on Tuesday. (Sept. 20)

MEXICO CITY — Police, firefighters and ordinary Mexicans, some using only bare hands, found a young girl alive Wednesday under the rubble of a school that collapsed in a powerful earthquake that leveled scores of buildings and killed at least 225 people.

The discovery raised hope — already dimming — of more survivors trapped beneath pancaked structures. In one school alone, authorities said 30 to 40 people were believed buried in the rubble, their fate unknown.

At one site in the city’s Roma neighborhood, rescue workers cheered as they brought out a woman alive from what remained of a toppled building. The workers immediately called for quiet again so they could listen for the sound of survivors under the rubble.

Workers pulled 52 people from the rubble of collapsed buildings in the capital, the Mexico City government said. The city’s Social Development Department tweeted the number Wednesday afternoon and added: “We won’t stop.”

The magnitude-7.1 earthquake rocked the capital and surrounding area Tuesday, 32 years to the day after a major quake devastated the capital city in 1985.

Luis Felipe Puente, head of the Civil Protection, said on Twitter that the fatalities included 94 from Mexico City, 71 from Morelos State, 43 in Puebla, 12 in the State of Mexico, four in Guerrero and one in Oaxaca.

The quake hit near the town of Raboso, about 76 miles southeast of Mexico City, the U.S. Geological Survey said.

Mexico City Mayor Miguel Ángel Mancera said 39 buildings in the capital were destroyed and another 30 properties seriously damaged, La Prensa reports. Mexican President…