Tree rings reveal a new kind of earthquake threat to the Pacific Northwest
University of Arizona, PyhsOrg, September, 28, 2023
[phys.org]

The open access paper is:

Bryan A. Black et al. ,A multifault earthquake threat for the Seattle metropolitan
region revealed by mass tree mortality.Sci. Adv.9,eadh4973(2023).DOI:10.1126/sciadv.adh4973
[www.science.org]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)