Pacific Tsunami Warning Center - http://ptwc.weather.gov/

This is the place which first gave the warnings to all around the world to safe guard people around the world.

It seems it was a vertical quake compare to 2004 (horizontal). This might be the reason which safe all of us from a big trouble.

More details on Earthquake in Indonesia which resulted in TSunami warnings for SL and other 20 countries, please ref- http://ptwc.weather.gov/ptwc/?region=3&id=indian.TSUIOX.2012.04.11.0845