So maybe I did feel it in my sleep.” Images from social media show people congregating on the streets of Mexico City, as the earthquake forced people out of their homes and office buildings. REUTERS/Henry Romero

MEXICO CITY (Reuters) - A 5.7 magnitude earthquake rattled Mexico City on Thursday morning, triggering the city's seismic alarm and causing some residents to flee from their homes and offices. The US Geological Survey initially said the earthquake was recorded as 5.9-magnitude but this was later reduced to 5.7

There were no immediate reports of injuries or major damage but social media users reported feeling buildings shake. The U.S. Geological Survey said the quake occurred around 8:30 a.m. local time and was centered near the city of Huajuapan de Leon in southern Oaxaca state, about 140 miles southeast of the capital.
A 5.7 magnitude earthquake is felt in Mexico City as buildings shake mildly and some residents evacuate homes and office buildings.