Indonesia: First Humans May Have Arrived in Sumatra
in Time for Toba Supervolcano Eruption, New Scientist
https://www.newscientist.com/article/2142952-early-humans-may-have-seen-a-supervolcano-explosion-up-close/
Old teeth from a rediscovered cave show humans were in
Indonesia more than 63,000 years ago August 10, 2017
by Kira Westaway, The Conversation
https://phys.org/news/2017-08-teeth-rediscovered-cave-humans-indonesia.html
Westaway, K. E., J. Louys, R. Due Awe, and others, 2017,
An early modern human presence in Sumatra 73,000–
63,000 years ago. Nature (2017) doi:10.1038/nature23452
Received 30 March 2017 Accepted 29 June 2017 Published
online 09 August 2017
https://www.nature.com/nature/journal/vaop/ncurrent/full/nature23452.html
Related articles:
Are we ready for the next volcanic catastrophe?
Bill McGuire, The Guardian
https://www.theguardian.com/world/2015/mar/28/are-we-ready-for-the-next-big-volcanic-eruption-tambora-bill-mcguire
Toba catastrophe theory.
https://en.wikipedia.org/wiki/Toba_catastrophe_theory
Yours,
Paul H.