Water leaking from No.1 reactor, NHK, May 12, 2011:
Tokyo Electric Power Company says water may be leaking from a hole in the No.1 reactor at the Fukushima Daiichi nuclear plant, causing a sharp drop in the water level inside the reactor. [...]
On Thursday morning, it was found that the water level was more than one meter below the bottom of the fuel rods. The water is believed to be leaking into the containment vessel. [...]
The Nuclear and Industrial Safety Agency said that if the latest data is accurate, it seems parts of the fuel rods have melted and accumulated at the bottom of the reactor. But it added that it believes the fuel rods are being cooled.
Unit 1, you need substantial revision of the cooling system, MBS Mainichi News, May 12, 2011:
Excerpts from translation by EX-SKF
[I]t is possible that the fuel rods have melted to the bottom of the RPV, and the molten mass is being cooled by the water at the bottom, according to the [government] source.
Published: May 12th, 2011 at 5:55 am ET
- NHK: Molten nuclear fuel “could be exposed from the water” at Reactor No. 1 (VIDEO) December 23, 2011
- Molten fuel bore a hole at bottom of Containment Vessel at Reactor No. 1– Pressure Vessel is “completely broken” says Kyoto U. nuclear professor May 17, 2011
- Melted fuel in No. 1 reactor NOT covered with water May 16, 2011
- NRC on Fukushima: Fuel rods violently consumed by self-sustaining reaction — Molten core then “on the move” — Radiological impact is huge (VIDEO) December 21, 2011
- “Fuel rods in reactors 1 and 3 have melted and settled at the bottom of their containment vessels” April 15, 2011