A tsunami propgation model on the Web?

This service could be the start of something really useful: as well as the public notification via Civil Defence, the Web-based notification could be to an email address, accessible from your own cell phone. The more such services get out there, the more robust the model becomes. There is always the caveat: as seagulls well know, stuff happens locally. The gust which gives Brother Gull Jonathon a quick case of the runs, out over the dunes, passes unnoticed by Sister Gull Theresa who happens to be rootling through the rubbish bins by the Pier. Tsunami are very localised beasts, just like hail-storms. As they say in that really big country north-north-east of here, 'your mileage may vary'.