Two big earthquakes have hit Indonesia, one was Magnitude 8.7 and hit Northern Sumatra at a depth of 30km, the second was Magnitude 6.7 and hit the Nias region of Indonesia.
This ABC report is predicting a Tsunami and evacuation orders have been issued for various parts of that region. They are also reporting dozens dead on Nias.
This appears to be the predicted aftershocks and follow on quakes from the new stresses put on the plates in that region after the massive December 26th earthquake.
More reports on Google News.