Thursday afternoon update... 4/14

NISA is reporting sharply rising temperatures in No. 3 reactor. Apparently the highest is about 250C. TEPCO is saying now that the readings ...

Wednesday evening update / Chernobyl comparison

Thank you to all our regular readers and all our new ones for setting a new one day discrete hit counter record, for the Blogger calendar da...

A couple of afternoon updates....

TEPCO is reporting that there is indeed damage to the fuel stored at No. 4 plant's spent fuel pool as a result of obtaining a water samp...

Fukushima Daiichi developments... Tuesday evening

The press is reporting a number of developments, very widely, so I'll just echo them here with some analysis. TEPCO continues to move wa...

Boiling Water Reactors.... some further details 2

In our previous installment, we looked at some features relative to the reactor cores, pressure vessels, recirculating water flow and normal...

Boiling Water Reactors... some further details.

Now that we're seeing a further media explosion about the Fukushima Daiichi accident being raised to an INES Level 7 event, there are su...

NISA commentary on INES level 7

Here is the official briefing, right off the NISA section of the Ministry of Economy, Trade and Industry site: APRIL 12 DOCUMENT / NISA-METI...