The sequence of huge earthquakes that struck off the coast of Sumatra in April may signal the creation of a new tectonic plate boundary.

Scientists give the assessment in this week's Nature journal.

They say their analysis of the tremors - the biggest was a magnitude 8.7 - suggests major changes are taking place on the ocean floor that will eventually split the Indo-Australian plate in two.

More info at link below

• April Sumatra quakes signal Indian ocean plate break-up