A 7.4-magnitude quake hits the southern Atlantic Ocean early Friday, the US Geological Survey said. 
The quake struck at 5:32 am local time (0732 GMT) at a depth of 10 kilometers. The epicenter of the quake was 195 miles (316 kilometers) from islands hosting British Antarctic research stations. 
It was centered east-southeast of the remote British-administered South Georgia and South Sandwich Islands, which are about 620 miles (1,000 kilometers) east of the Falkland Islands. 
There was no immediate tsunami warning following the quake. The USGS reported. 

Source : XINHUA