This morning a earthquake swarm started off coast of Sumatra. This earthquake swarm has had two great earthquakes. But that is earthquakes that are larger then Mw8.0 in magnitude. The first earthquake had the magnitude Mw8.6 at least and took place at 08:36 UTC. At 10:43 UTC there was an earthquake the magnitude of Mw8.1 at least. There have been many other smaller earthquakes taking place currently. Tsunami warning has been issued for the whole area due to this earthquakes.
Volcano and earthquake activity in Iceland