Photos: Explosion At Cuajimalpa Maternal Hospital

Rescue workers form a human chain, passing buckets of rubble, as they clear the wreckage of a children’s hospital, caused by a gas tank truck explosion in Cuajimalpa on the outskirts of Mexico City, Thursday, Jan. 29, 2015. The powerful explosion shattered the hospital on the western edge of Mexico’s capital, killing at least two and injuring dozens. (AP Photo)

A gas tank trunk explosion in front of a hospital in Mexico City on Thursday morning shattered  the hospital, killing seven people, including four babies and injuring dozens.

More than 100 people were inside the Cuajimalpa Maternal Hospital when the blast occurred at about 7 a.m.

The explosion was caused by a truck which was supplying gas to the hospital when apparently a hose burst and the resulting leak caused an explosion.

MEXICO Ciudad De MÉXico, Jan. 29, 2015 Smoke rises from the site where a tanker truck that was supplying gas in front of a hospital exploded, in Mexico City, capital of Mexico, on Jan. 29, 2015. Seven people were killed, including four babies, and at least 54 others injured Thursday morning in a powerful gas tank truck explosion outside a maternity and children’s hospital in Mexico City, local government said. (Credit Image: ? Notimex/Xinhua/ZUMA Wire)

Rescuers work amid the wreckage caused by an explosion in a hospital in Cuajimalpa, Mexico City, on January 29, 2015. A gas explosion ripped through a children’s hospital in Mexico City on Thursday, killing at least two people and injuring dozens, including 22 children, officials said. AFP PHOTO/DAVID DEOLARTEDAVID DEOLARTE/AFP/Getty Images

Rescuers work amid the wreckage caused by an explosion in a hospital in Cuajimalpa, Mexico City, on January 29, 2015. A gas explosion ripped through a children’s hospital in Mexico City on Thursday, killing at least two people and injuring dozens, including 22 children, officials said. AFP PHOTO/DAVID DEOLARTEDAVID DEOLARTE/AFP/Getty Images

Rescuers work amid the wreckage caused by an explosion in a hospital in Cuajimalpa, Mexico City, on January 29, 2015. A gas explosion ripped through a children’s hospital in Mexico City on Thursday, killing at least two people and injuring dozens, including 22 children, officials said. AFP PHOTO/DAVID DEOLARTEDAVID DEOLARTE/AFP/Getty Images

Rescuers work amid the wreckage caused by an explosion in a hospital in Cuajimalpa, Mexico City, on January 29, 2015. A gas explosion ripped through a children’s hospital in Mexico City on Thursday, killing at least two people and injuring dozens, including 22 children, officials said. AFP PHOTO/DAVID DEOLARTEDAVID DEOLARTE/AFP/Getty Images

Rescuers work amid the wreckage caused by an explosion in a hospital in Cuajimalpa, Mexico City, on January 29, 2015. A gas explosion ripped through a children’s hospital in Mexico City on Thursday, killing at least two people and injuring dozens, including 22 children, officials said. AFP PHOTO/DAVID DEOLARTEDAVID DEOLARTE/AFP/Getty Images

A 7.2 Magnitude Earthquake Shakes Mexico

A parked car suffered damage when a adobe wall collapsed on it after a strong earthquake shook Chilpancingo, Mexico, Friday morning, April 18, 2014. A powerful magnitude-7.2 earthquake shook central and southern Mexico but there were no early reports of major damage or casualties. (AP Photo/Alejandrino Gonzalez).

A strong 7.2 magnitude earthquake struck 170 miles (273 kilometers) southwest of Mexico City at about 9:30 a.m. (10:30 a.m. EDT; 1430 GMT) on Friday shaking central and southern Mexico .

According to the U.S. Geological Survey, the quake was centered 22 miles (36 kilometers) northwest of the town of Tecpan de Galeana, and was 15 miles (24 kilometers) deep.

There were reports of cracked walls, fallen fences and walls, fallen trees, broken windows and a power outage but there were no reports of major damage or casualties.

USGS seismologist Gavin Hayes said that the earthquake occurred along a section of the Pacific Coast known as the Guerrero Seismic Gap, a 125-mile (200-kilometer) section where tectonic plates meet and have been locked, meaning huge amounts of energy are being stored up with potentially devastating effects.

A damaged abandoned home is seen at the Juarez neighborhood after a strong earthquake jolted Mexico City, Friday, April 18, 2014. (AP Photo/Eduardo Verdugo)

A damaged abandoned house is seen at the Juarez neighborhood after a strong earthquake jolted Mexico City, Friday, April 18, 2014. (AP Photo/Eduardo Verdugo).