Indications from the reactor to radiation readings suggest that the core has melted through the bottom of the pressure vessel in unit two
Workers at the crippled Fukushima Dai-ichi nuclear plant appeared to have "lost the race" to save one of the reactors, a U.S. expert told the Guardian.
Richard Lahey, who was head of safety research for boiling water reactors at General Electric when the company installed the units at the Japan plant, says the radioactive core in the Unit 2 reactor appears to have melted through the bottom of its containment vessel and on a concrete floor.
"The indications we have, from the reactor to radiation readings and the materials they are seeing, suggest that the core has melted through the bottom of the pressure vessel in unit two, and at least some of it is down on the floor of the drywell," Lahey told the paper.
Lahey did add there was no danger of a Chernobyl-style catastrophe.
Japan was hit by another earthquake Wednesday after a magnitude-5.5 earthquake struck off the east coast of Honshu, according to the U.S. Geological Survey