Amazing - Sendai airport wiped out by 30-foot waves.

Tried calling my parents-in-law and got through only after 30 minutes of auto-redial-calling. Everyone's fine although several glass doors were smashed. Last time Tokyo's phone network went down was at the stroke of midnight year 2000.

Spoke to them for 2 minutes before hanging up at my wife's insistence. She says we should not hog the phone lines because other people need to get through as well. Very Japanese if you know what I mean. If you need to contact family/friends, use email - phone network's not working right now.

With hundreds dead, thousands missing, many made homeless in this ongoing tragedy, the last thing I would be thinking about is my kids not being able to go to some theme park.

NRT is open for business today. For example, NH919 NRT-PVG departed 9:40am JST and on the inbound, NH1 IAD-NRT is due to land soon.
Therefore at least 1 of of its 2 runways has no issues. I'd expect things to be back to business soon, perhaps Monday.

For those that are still there, perhaps you might want to follow a simple rule that the Japanese are taught from a young age: if during a tremor, you feel things are going sideways e.g. left to right or vice-versa, then it's OK. If you feel things are moving up and down, then evacuate immediately.

Not sure where you are but the airport limousine bus is operating today. 26 mins from Shinjuku Sta. to Haneda.

Caveat: I am not in Japan. However I've been speaking with relatives there every day.

Like I said earlier, I expect everything to be back to normal Monday. Rail companies will use the weekend to test things out so trains will run off and on. But the trains are running. All kids will go back to school on Monday in the Kanto area - Tokyo came away relatively unscathed during this quake. Supermarkets are open, food is available, only no fish.

I can understand why you all want to return home as quickly as possible. However, earthquakes will always remain a risk in Japan, tomorrow, next week, next year. You just don't know when the big one will hit Tokyo (and this wasn't the Big One - the current earthquake was not generated from the fault line that's near Tokyo i.e. Tokai Fault). Same with California - everyone's certain a big one is coming - it might be tomorrow, might be never.

On the contrary, world opinion seems to be in awe of the Japanese spirit:

Why Is There No Looting in Japan
Quake response showcases Japan's resilient spirit

Most other forums I read seem to echo this view. Most posters are respectful of the tragedy unfolding. Most do not say:

Japan's not perfect but no other people in the world I know of would be doing things such as saving electricity so as not to burden the infrastructure, not making wasteful phone calls so as to let others get through and find out about their loved ones etc. Because of the rolling blackouts, I hear the queues, for the trains that do run, stretch out of the platform and out of the station. Do they complain? Silently perhaps. But not out loud.

Japanese are proven survivors. They got through the Restoration. They got through WWII. They will get through this. The word Gaman best describes their resolve and how they are handling this.

It is virtually impossible for Japan to hide or sweep things under the carpet, because of the world-wide attention and cooperation this is getting.
IAEA is involved. The US (civilian and military) are involved. France is now involved. This is the global 21st century - if nothing else, information leaks.

The US military have been flying missions taking radiation readings since the beginning - if they knew something - they have a duty of care to tell their own citizens living in Japan (and there are MANY because of the bases in Yokohama) to cabut. And they haven't. They don't care about causing Japanese panic or what not. The French left early because, well, they're French, that's what they do

Japan publishes radiation readings at various collection points throughout the country on a daily basis. Right now, Tokyo is registering less background radiation that HK does on a normal day. Source: Bloomberg

And why is China at risk? Beijing is 1300 miles from Tokyo. Roughly same distance London is from Chernobyl, Ukraine. You didn't see people fleeing from London during the Chernobyl incident. And that was a meltdown. The Fukushima reactors are not in meltdown. The Chinese man-in-the-street likes to over-react, especially when it has something or anything to do with Japan (victims of over-successful propaganda)

Sure, the immediate area around the Fukushima reactors are probably off limits for the next 20 years or so (depending on what isotopes got loose). Agriculture is probably shot there too. But Tokyo is pretty far away still.