After six years since the tragic nuclear incident at the Fukushima Daiichi plant, a new investigation has identified melted fuel rods underneath, but the extreme high radiation levels have failed to take those out.
A look back at the Fukushima Daiichi disaster and Japan's effort to recover.
Experts said radiation inside the reactor had reached "unimaginable" levels.
The current radiation level is more than seven times greater than previously recorded highs.
An earthquake measuring 7.9-magnitude struck 25 miles west of Panguna in Papua New Guinea, the United States Geological Survey said Sunday.
The quake, which had its epicenter in the Celebes Sea, was around 390 miles in depth.
The tremor struck 176 miles south of Fiji. No damage or casualties were initially reported.
The Pacific Tsunami Warning Center said that hazardous tsunami waves are possible within the next three hours along some coasts in the South Pacific.
A tsunami warning was issued after a magnitude 7.7 earthquake hit 30 miles off the coast of the Solomon Islands in the Pacific Ocean Friday morning.
A 6.5 magnitude earthquake struck Indonesia's Aceh Province Wednesday, killing at least 97 people.
A 7.3-magnitude earthquake struck eastern Japan on Tuesday morning local time, triggering a tsunami warning.
There was no danger of a tsunami and no immediate report of injuries or major damage.
The country’s worst natural disaster since the 2004 tsunami will cost a large amount of money, and the government urged foreign donors to help.
Saturday’s magnitude-7.8 quake along the country’s Pacific coast was followed by 55 aftershocks.
Thursday's magnitude-6.5 earthquake left at least nine dead and hundreds injured, and thousands without power.
A moment of silence was observed across Japan to mark the fifth anniversary of the March 11 tsunami that devastated the country's northeast.