Here was the warning put out by the Japan Meteorological Agency:
Issued at 09:33 JST 28 Feb 2010
Major Tsunami and Tsunami have been issued.
PACIFIC COAST OF TOHOKU
PACIFIC COAST OF HOKKAIDO
JAPAN SEA COAST OF AOMORI PREF.
PACIFIC COAST OF KINKI/SHIKOKU
ARIAKE SEA AND YATSUSHIRO SEA
EASTERN PART OF KYUSHU
Evacuate from the seashore immediately to the safe places near the above coasts.
Tsunami attentions are in effect at some of the other coasts now.
***********About Tsunami Forecast************
Tsunami height is expected to be 3 meters or more, Keep careful watch on tsunamis.
Tsunami height is expected to be up to 2 meters, Keep watch on tsunamis.
Tsunami height is expected to be about 0.5 meters, Pay attention to tsunamis.