AFP•August 19, 2016
Japan sits at the junction of four tectonic plates and experiences a number of relatively violent quakes every year (AFP Photo/Olivier Morin)
Washington (AFP) - A 7.4-magnitude quake shook the southern Atlantic Ocean early Friday, the US Geological Survey said, with an epicenter 195 miles (316 kilometers) from islands hosting a British Antarctic research station.
There was no immediate tsunami warning.
The quake struck at 5:32 am local time (0732 GMT) at a depth of 10 kilometers. It was centered east-southeast of the British administered South Georgia and South Sandwich Islands.