It was 1628BC...The same time as the Bibical Exodus.
Professor Mike Baillie (dendrochronologist) does an excellent job of dating that eruption by used tree-rings worldwide in his excellent book, Exodus To Arthur
Professor Mike Baillie (dendrochronologist) does an excellent job of dating that eruption by used tree-rings worldwide in his excellent book, Exodus To Arthur
Thanks! I will add that to my reading list. One reason I got into this whole area was because I was following the controversy over the date of the Exodus generated by the work of John Bimson--for those seeking more information on this, good summary about halfway down the page here:
Evidence for the Early Date of the Exodus
Also see:
The Date of the Exodus: Introduction to the Competing Theories