Joe 1
1949 - Semipalatinsk, Kazakhstan
On August 29, 1949, the Soviet Union conducted its first nuclear test, code-named RDS-1, at the Semipalatinsk test site. The device had a yield of 22 kilotons. The USSR became the world's second nuclear weapon state.
Yield: 22 Kilotons
Location: Semipalatinsk, Kazakhstan
Date: August 29, 1949