Correction to: Nature https://doi.org/10.1038/s41586-021-03878-5Published online 5 August 2021

During the preparation of this manuscript, an error arose regarding the total isotropic energy described. In the last paragraph of the main text, the sentence now reading “The total isotropic energy emitted in the 1,652 bursts that we report is 3.4 × 1041 erg” originally read “6.4 × 1046 erg.” Similarly, in the Methods section “Energy budget constraint on the synchrotron maser magnetar model,” the first sentence now reading “The total isotropic energy emitted in the 1,652 bursts reported in this paper is 3.4 × 1041 erg,” 3.4 × 1041 now replaces “6.4 × 1046.” In the fourth sentence of the same Methods section, in the text now reading “the total energy emitted … is already ~6.4 × 1046 \({\eta }_{-4}^{-1}\) erg,” 6.4 × 1046 replaces “2 × 1045.” In the Methods “Polarization characteristics” paragraph, the text now reading “The circular polarization of a few brightest bursts is consistent with noise,” the text “of a few brightest bursts” has been inserted in the sentence.

These errors have been corrected in the online version of the Article.