My condolences to the Japanese people and to all those who have lost family and friends. The magnitude of the disaster is terrible. They few people I know in Japan are not in the North East and are safe.
Japan is renowned for its ability to respond to disasters, but the sheer enormity of what has occurred and is occuring is making it difficult for them to respond in proportion to the events.
Japan is also home to many coffee enthusiasts and many Australian coffee lovers will be familiar with Hario glass products - based in North West Tokyo where the quake would have been felt strongly.
Like the quake in Christchurch, Twitter has been a valuable tool and google have once again created a people finder.
Hashtags to follow quake related events are #japan, #japanquake and #tsunami
Google's emergency response page is located at: http://www.google.com/crisisresponse/japanquake2011.html