Mondy - I think the tide gauge that recorded that was in an earthquake hit area.
Just watching TV and all the eyes are on Hawaii, however looking at live tidal data from California, the fluctuations in height there are much more obvious. Be interesting to see how long it takes for the press to notice this one.
Been working for a long time, 7 days a week on a hectic job in the middle east so back in the UK on a well earned break but now finding myself shouting at the TV. The press both UK and American, really have no idea what a tsunami is or what they are looking for. Also be interesting to see if some of the real-time tidal monitoring equipment my company have in the Malacca Straits at the moment picks anything up.