Thursday evening update.... Fukushima Daiichi

Not much new to report coming out of Fukushima Daiichi. NISA is tardy with its reports, as is TEPCO. However, JAIF is a bit more forthcoming...

Update... a better overall BWR Mk I plant view

Here, reproduced from an ORNL report which itself used an original GE plant layout diagram is a new illustration for this blog. This is a BW...

Radioactive Iodine in groundwater at Fukushima Daiichi

TEPCO survey has revealed radioactive Iodine in the ground water at Fukushima Daiichi site, near the No. 1 plant, at a level ten thousand ti...

Thursday morning update @ Fukushima Daiichi

Some new details... Reported elsewhere and skipped here is the attempt to contain or seal contaminants at the site by spraying them with a s...

Containment, second installment

Many people have seen drawings of the containments at Fukushima Daiichi, and some terms are starting to get tossed around in the press. Furt...

Fukushima Daiichi -- worse Iodine

Iodine 4385 times the standard limit found near Fukushima Daiichi plant in the seawater. BREAKING 10:30 PM Eastern Wednesday 3/31 ATOMIC POW...

Wednesday evening SITREP, and background.

Here is the latest JAIF document to be made available. There isn't much news in this, except the note of gradually increasing pressure i...

Wednesday morning update / Fukushima Daiichi

Very little new technical data is coming out of Japan, likely because the situation is not nearly so fluid as it was before. Here are some u...

Newsweek Magazine, and the SL-1 Accident

Folks, I have in my hands here one of the worst examples of news reporting in the history of the news media's love-hate affair with nucl...

NISA Briefing Notes

Here are some notes from the latest NISA (Nuclear & Industrial Safety Agency) briefing, given the morning of the 29th (Tokyo time.) No. ...

Tuesday morning (Eastern) update

There are not a lot of new details coming out of Fukushima Daiichi, NISA or TEPCO today... work is continuing on just a few very important ...

Update, Monday evening (Eastern)

We've been hoping for some solid technical data today before making any kind of post, but precious little has yet appeared. Let's l...

Contaminated water in trenches outside turbine buildings.. update

Now that we've gotten some more solid data, let's talk about what's known and what it might imply (if anything) and what can be ...

No further updates, oddly enough.

TEPCO has provided one update that essentially tells us "no change" from their last one. JAIF has no new data... JAIF STATUS 1600...

Highly contaminated water outside No. 2 plant

TEPCO has announced that highly contaminated water has been found in an underground pipe tunnel at the No. 2 plant - meaning that it has lea...

NISA having a meeting right now...

Chief Cabinet Secretary Yukio Edano has just revealed on live TV that, after briefing him on some details, NISA is having a closed door meet...

NISA update, morning of 3/28 in Japan

It's the morning of the 28th in Japan, and NISA (Nuclear and Industrial Safety Agency) has just given another briefing. The able Hidehi...

Further earthquake- Japan...

Earthquake off coast of Miyagi Prefecture. Tsunami warning; 50 cm+ height in concurrence with high tide possible. DEVELOPING 6:41 PM Easte...

Some revision by TEPCO... and a better outlook

There is a sliver of evidence this morning (in Tokyo, anyway) that TEPCO thinks that continued fission is NOT occurring above natural decays...

A few bothersome facts

I have been consistently non-alarmist on this blog because I myself understand what is going on at Fukushima Daiichi, at least in the big pi...

BBC online article worth seeing.. on radiation

One of our readers, Keith, has sent a link to a very good article (and a very recent one) on the BBC website, regarding radiation exposure. ...

Fukushima Daiichi Update ~4:30 AM Sunday (Eastern)

Updates from varied sources... The radiation field in the No. 2 plant turbine building at a location in the basement adjacent to the reactor...

"On the wire"

On the news wire right now from Kyodo are some statements we already knew and one that's somewhat surprising. The "we said this...

Radiation in Los Angeles? Nope.

Although the "reports" of the enviro-militant Comprehensive Test Ban Treaty Organization seem to make some press when they claim t...

Fukushima Daiichi - update from NISA, others

TEPCO is going to begin moving the water from the turbine buildings into the condenser hotwells in No. 1 and No. 2 plants. Attempts to switc...

Some interim details- CONTAINMENT

Let's take a moment, now that the constant flood of news information out of Japan has slowed down a bit, to briefly review what has happ...

Few technical updates available

The Japanese have not been forthcoming today with a slew of technical updates; this may well be because most efforts have slowed except thos...

Update... sort of

Apparently the latest NISA briefing has been conducted without live television coverage being made available anywhere. This is because it...

JAIF status update, and other new information

Further evidence that the SBO or Station Blackout accident sequence experienced by Fukushima Daiichi No. 1, No. 2 and No. 3 plants may have ...

JAIF status reflects observations of earlier...

The latest JAIF status document reflects developments and gives observations essentially identical to those presented on this site last even...

No. 3 plant; further troubles...

There is a story on the wires now that a Japanese Government panel (and I haven't figured out who that is yet) has made a statment about...

JAIF status... 1000 Hrs 25 March

Latest document released is the Japan Atomic Industrial Forum daily plant status report... JAIF STATUS 25 MAR 1000 Interesting to note here ...

NISA briefing

Well, the most alarming thing that came out of this briefing is the confirmation that the water in the No. 3 plant turbine building does in ...

High rad levels, again

Just a note here that I've heard three reports now that the workers that received radiation doses of 170 mSv in the basement of number 3...

First update of the 25th (Tokyo date)

It is now the morning of the 25th of March in Japan, and the first technical updates are available before the briefings today -- which as al...

Hint of the total cleanup cost and time

I have no real intention of putting a lot of data on plant cleanup on here until the accident phase is over. However, while looking at a la...

Some NISA data

NISA (Nuclear & Industrial Safety Agency) has some new data out. REACTOR PLANT / FEEDWATER NOZZLE TEMP / REACTOR VESSEL BOTTOM HEAD TEMP...

Latest TEPCO documents...

Updates in a flurry as the day gets moving in Japan.. TEPCO indicates that the pump that tripped at No. 5 plant was the temporary Residual H...

Latest JAIF status...

Latest JAIF status includes information that No. 3 plant's containment is intact. The document also mentions a high rad area in No. 2 un...

Most recent briefing

Just watched the NISA briefing at 10:20 Tokyo time. Some details... No. 1 plant: At 9 PM last night TEPCO began injecting water through two...

Work at No. 3 plant resumes

TEPCO has resumed work at No. 3 plant, according to a recent story on the wire right now. I'm eagerly awaiting this morning's set o...

Vapor from all four plants...

Work stopped at Fukushima Daiichi site, due to smoke/vapor issuing from all FOUR reactor plant buildings. This is the first appearance of va...

10:00 AM Eastern update...

Radio reports are that one of the condensate or else one of the feed pumps at No. 3 plant was tested as operable before the smoke event caus...

Further plant recovery process details

From a few different sources, here are a few points: Water injection to the primary plants is going to be shifted over to the normal feedwat...

Garbled, but partly readable...

Apparently something happened with the latest NISA Seismic Damage Report document, and it's kind of garbled but I can read enough of it ...