7.6 magnitude earthquake has rocked northern Chile Wednesday April 02,2014

A powerful 7.6 magnitude earthquake has rocked northern Chile, just over 24 hours after an 8.2 tremor killed six people, destroyed 2,600 houses and led to mass evacuations.

The quake is the strongest of several aftershocks following Tuesday's tremor.

There have been no reports of damage from the latest quake.

The aftershock caused buildings to wobble and people to run into the streets in the port of Iquique, which was one of the cities hit by Tuesday night's quake.

The latest quake was centred 23km (14 miles) south of Iquique.

The US Geological Survey said the aftershock had a depth of 20km (12 miles) and was felt across the border in southern Peru, where people in the cities of Tacna and Arequipa also fled buildings. 

A tsunami alert in Chile and Peru was again issued, but was later lifted after waves of 2.4ft (0.7 meters) hit coastal areas.

Chilean President Michelle Bachelet declared two northern provinces - Arica and Parinacota, and Tarapaca - disaster areas.