

The Soviet-American underground nuclear explosion monitoring project near the biggest Soviet nuclear test ground in Semipalatinsk, Kazakh SSR. Engineers from the United States and the USSR set up equipment at a seismology station near Karkaralinsk.
- Categories: Unrest, Conflicts & War, Politics, Science & Technology
- Location: Karaganda Region, Kazakhstan
- Event date: 20.08.1986
- Date published: 16.07.2025
- Author: Yuriy Kuydin
- Credit: Sputnik
- Original: 86-14727, 35 mm film
- Media: JPEG, 3513x5275px, 8.1Mb