Correction to: Scientific Reports https://doi.org/10.1038/s41598-019-38595-7, published online 05 February 2019

The Acknowledgements section in this Article is incomplete.

“J.E. was funded by the Research Institute for Development (IRD). We are particularly grateful to Timothy H. Druitt for constructive scientific discussions. We warmly thank A. Folch and one anonymous reviewer for constructive comments.”

should read:

“J.E. was funded by the Research Institute for Development (IRD). We are particularly grateful to Timothy H. Druitt for constructive scientific discussions. We warmly thank A. Folch and one anonymous reviewer for constructive comments. We thank the European project EUROVOLC (grant number 731070), A.C. also acknowledges the Italian MIUR project Premiale Ash-RESILIENCE.”