Crowds on the street after earthquake shakes Mexico City

A 5.8-magnitude earthquake shook much of central Mexico on Thursday including the capital, prompting people to run into the streets, the country's seismological institute said.

The rumbling in the quake-prone country touched off a warning siren system. The institute said the epicenter was in the central state of Puebla. Puebla officials the quake was felt in several towns but there were no initial reports of damage or injuries.

Mexico lies over five tectonic plates that make it one of the world's most earthquake vulnerable countries, particularly on the Pacific coast. In 1985 an 8.1 magnitude quake centered on the Pacific coast ravaged much of central and southern Mexico, killing thousands and causing severe damage in Mexico City.