[MrsPeaches]

Selected section for boat operators:

* Boat operators, * Where time and conditions permit, move your boat out to sea to a depth of at least 180 feet.

     * If at sea avoid entering shallow water, harbors,
       marinas, bays, and inlets to avoid floating and
       submerged debris and strong currents.

 * Do not go to the shore to observe the tsunami.

 * Do not return to the coast until local emergency officials
   indicate it is safe to do so.

This doesn’t seem to be specifically about house boats. Might be worth contacting your local emergency officials (whoever they may be).

[db48x]

To be honest, this is the kind of thing you should look up before you decide to live on a house boat.