The Fukushima Daiichi nuclear power plant’s radiation levels have significantly dropped since the cataclysmic meltdown 14 years ago.

The operator of the wrecked Fukushima Daiichi nuclear power plant in Japan says it has no new safety worries and envisions no changes to the plant’s decommissioning plans even after a deadly earthquake on Jan. 1 caused minor damage to another idled nuclear plant.

The head of Japan’s wrecked Fukushima nuclear plant says details of the damage inside its reactors are only beginning to be known 12 years after it was hit by a massive earthquake and tsunami, making it difficult to foresee when or how its decommissioning will be completed.