Powerful 5.7-magnitude earthquake strikes in sea off Indonesia

A powerful earthquake measuring 5.7 magnitude has struck the Halmahera Sea in Indonesia on Monday, the German Research Centre for Geosciences (GFZ) said.

The quake was at a depth of 6.21 miles, the GFZ said, and took place at around 1:30pm local time around 26 miles off the coast of Obi Island. 

According to Indonesia's meteorology office BMKG, the 5.7 magnitude earthquake is the fourth to hit the nation today alone, with the first quake of the day, which was registered as 5.6 magnitude, taking place at 10:24am local time.