These data are part of the supplementary information of our publication Trees talk tremor – Wood anatomy and δ13 C content reveal contrasting tree-growth responses to earthquakes published in the Journal of Geophysical Research - Biogeosciences (Mohr et al., 2021). Our data comprise inter- and intra-annual time series of δ13 C and wood anatomic features from tree cores taken within the rupture zone of the M8.8 2010 Maule earthquake.