Ometepec, Guerrero, Mexico - Mexican officials were assessing collateral damage Wednesday, a day after a strong 7.4 magnitude earthquake left homes in ruins and rattled residents as far as 200 miles away from the epicenter, 15 miles east of Ometepec. Broken tiles and pieces of buildings fell onto sidewalks as far away as Mexico City.

At least 11 people were injured, and hundreds of houses were damaged during the quake and the more than 40 subsequent aftershocks, some registering up to 5.0, that continued up to 12 hours later. Many people, fearing aftershocks, said they slept outdoors overnight.

Workers and residents gather at the Angel de la Independencia square after evacuating during a 7.9 earthquake in Guerrero on Tuesday.

Damage from the earthquake was also suffered in Oaxaca state, which borders Guerrero, and nine of the eleven injuries occurred there. The other two injuries were in Mexico City, including the driver of a minibus that was hurt when a pedestrian bridge collapsed there.

Experts surveyed cracks in walls, roads, and twisted train lines in central and southern areas of Mexico.

Photos showed Nurses tending to patients in a parking lot next to a hospital building that was damaged by the earthquake, and also showed residents from some of the hardest-hit areas surveying the rubble where their adobe homes once stood.

In the capital, Elias Moreno Brizuela, director of the Mexico City's civil protection services reported, "The urban infrastructure of the city perfectly supported the earthquake. As of now, we've seen no structural damage, although about 300,000 people on the south side of the city were without water after the quake damaged two aqueducts."

The quake was one of the strongest to shake the capital since 1985, when an 8.1 magnitude temblor left between 6,000 and 30,000 injured or dead, according to officials and rescue organizations respectively.

There have been 15 earthquakes of magnitude 7 or stronger since 1973 within 310 miles of Tuesday's quake. Mexico City is built on volcanic ash and clay and is particularly vulnerable to temblors.

Although all the damage reports vary, Guerrero state governor Angel Aguirre said that approximately 1,600 houses in the region had been damaged by Tuesday's earthquake, but no deaths had been reported.