Scientist holding dead tree stump
![Scientist in full rain gear, covered in mud, holding a dead tree stump. Clouds, mountain, tidal marsh and grass.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/PA190813%20%281%29_Haeussler.jpeg?itok=TWQ_x2jq)
Detailed Description
Research Geologist Peter Haeussler holding a stump from a tree that was killed in the penultimate great earthquake - the last giant earthquake before the 1964 M9.2 earthquake in southcentral Alaska. The sample was collected at a tidal marsh near Girdwood, Alaska, for dendrochronology, that is tree ring, studies, which indicate this previous giant earthquake was about 850 years ago.
Sources/Usage
Public Domain.
Photo by Rob Witter, U.S. Geological Survey