An earthquake triggered a tsunami warning in Indonesia, which is said to have covered "Indonesia, India, Sri Lanka, Australia, Myanmar, Thailand, the Maldives and other Indian Ocean islands, Malaysia, Pakistan, Somalia, Oman, Iran, Bangladesh, Kenya, South Africa and Singapore," but the wave that rolled ashore was insignificant. However, a subsequent, strong aftershock then triggered another warning, and I've seen no information about that yet.
These events seem to be about 8.6 magnitude, which is high. They were at sea along the western edge of the continental plate.
This is of course in the general vicinity of the famous "Sumatra-Andaman earthquake" (aka "Boxing Day earthquake and tsunami") of 2004.