Preliminary magnitude 8.9 off the West coast of Northern Sumatra according to the USGS
More details as and when i get them …
UPDATE: about 308 miles from Banda Aceh and 638 miles from KL
Indian Ocean-Wide Tsunami watch in effect according to the Pacific Tsunami Warning Centre
UPDATE: Magnitude revised down to 8.7, India issues a Tsunami warning for the Andaman islands, tremors felt in Sri Lanka