(Undated)  --  The tsunami watches and warnings for the West Coast are cancelled.  The National Weather Service has cancelled the warning it put out for Alaska and British Columbia after a magnitude 7.9 earthquake hit off the coast of Alaska overnight.  The watches put in place are also now cancelled.  They had covered Washington, Oregon, and California.  Although it's now cancelled, the National Weather Service says some coastal areas in those three states might see some small changes in sea level.