Chagai-I
| Chagai-I | |
|---|---|
The dust expulsion from the Ras Koh Hills following the underground nuclear detonation | |
| Information | |
| Country | Pakistan |
| Test site | Ras Koh Hills, Chagai, Balochistan, Pakistan |
| Period | 28 May 1998 |
| Number of tests | 5 |
| Test type | Underground tests |
| Device type | Boosted fission/Fusion |
| Max. yield | 40 kilotons of TNT (170 TJ) See note |
| Test chronology | |
Chagai-I is the code name of five simultaneous underground nuclear tests conducted by Pakistan on 28 May 1998 at 15:15 PKT. The tests were performed at Ras Koh Hills in the Chagai District of Balochistan Province.
Chagai-I was Pakistan's first public test of nuclear weapons. Its timing was a direct response to India's second nuclear test Pokhran-II, on 11 and 13 May 1998. These tests by Pakistan and India resulted in United Nations Security Council Resolution 1172 and economic sanctions on both states by a number of major powers, particularly the United States and Japan. By testing nuclear devices, Pakistan became the seventh country to publicly test nuclear weapons. Pakistan's second nuclear test, Chagai-II, followed on 30 May 1998.
28 May, the day of the nuclear test, is referred to as Youm-e-Takbir in Pakistan; it is celebrated as a national holiday commemorating Pakistan's emergence as a nuclear power.