The map in the story ‘Quake fears rise at Japan’s reactors’ ( Nature 494, 14–15; 2013) wrongly suggested that only a single reactor, rather than the whole plant, is under inspection at Oi.

The News story ‘Company offers portable peer review’ ( Nature 494, 161; 2013) wrongly stated that the European Molecular Biology Organization’s open peer review was not anonymous — the reviews are made public but are anonymized.