Tsunami Alerts & Other Sources

Tsunami Alerts are being issued by West Coast & Alaska Tsunami Warning Center. Their latest messages can be viewed here and the feed for the same is here.

Pacific Tsunami Warning Center issued the very first Tsunami Warning with respect to this Tsunami and their latest bulletins are available here.

TsunamiReady has a lot of information on how to prepare for an coming Tsunami.

Tsunami.gov page also has a bunch of information on Tsunami preparation & alerts.