Day 4 - Radioactive Nuclear reactors

A new explosion occured at no.2 nuclear plant, and fire breaking out at no.4 nuclear plants. Earlier when the 8.9M earthquake struck, blasts occured at no.1 and no.3 nuclear plants, taking the total damage toll to 4 out of 6 nuclear reactors at Fukushima No.1 Nuke Plant. - http://www.japantoday.com/category/national/view/work-resumes-to-pump-seawater-into-troubled-nuclear-reactor-unit

A sharp increase in radiation levels has been reported - Japan's Chief Cabinet Secretary Yukio Edano had, at one point, said radiation levels near the stricken plant on the northeast coast reached as high as 400 millisieverts (mSv) an hour. That figure would be would be 20 times the annual exposure for some nuclear-industry employees and uranium miners.

*One sievert is 1,000 millisieverts (mSv). One millisievert is 1,000 microsieverts.
* People are exposed to natural radiation of 2-3 mSv a year.
* In a CT scan, the organ being studied typically receives a radiation dose of 15 mSv in an adult to 30 mSv in a newborn infant.

Radiation levels have been confirmed to have harmful effects, although not deadly. More current reports have also indicated that the levels are coming down sharply.

READ HERE FOR MORE INFORMATION ON RADIATION - http://www.reuters.com/article/2011/03/15/us-japan-quake-radiation-idUSTRE72E14R20110315, http://news.ninemsn.com.au/world/japanquake/8224394/Radiation-level-falls-at-quake-hit-plant

Kudos to the heroes still pumping in water at the nuclear plants despite the high risk involved.

At 10:31pm (TOKYO TIME), a magnitude 6.0 earthquake rocked different parts of Japan, epicentre being at Shizuoka prefecture.