Check out a comment at Selva's Scientific Indian blog. Certainly seems like some of this loss of life could have been averted by just responding to known warnings.
In the meantime, if folks want to help in relief efforts, the Association for India's Development (AID) is soliciting monetary support. They have already started helping out with efforts by grassroots partners in Tamil Nadu and Andhra Pradesh. You can make a donation here.
From the Indian Express
After yesterday’s earthquake, there were 90 minutes before the first wave of the deluge crashed into the Indian coast. Within 15 minutes of the earthquake, scientists running the tsunami warning system for the Pacific had issued a cautionary from their Honolulu hub, to 26 participating countries. India was not among them.