USA - Operation Hardtack I
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Explosions
34
Total yield
34.4 MT
First shot
1958-04-28
Last shot
1958-08-18
| Operation | Name | Date | Location | Yield |
| Hardtack I | Yucca | 1958-04-28 | Pacific Ocean | 2.00 kT |
| Hardtack I | Cactus | 1958-05-05 | Enewetak Runit (Yvonne) | 18 kT |
| Hardtack I | Fir | 1958-05-11 | Bikini Namu (Charlie) | 1.0 MT |
| Hardtack I | Butternut | 1958-05-11 | Enewetak Runit (Yvonne) | 81 kT |
| Hardtack I | Koa | 1958-05-12 | Enewetak Teiter (Gene) | 1.0 MT |
| Hardtack I | Wahoo | 1958-05-16 | Enewetak Pokon (Irvin) | 9.00 kT |
| Hardtack I | Holly | 1958-05-20 | Enewetak Runit (Yvonne) | 6.00 kT |
| Hardtack I | Nutmeg | 1958-05-21 | Bikini Eninmen (Tare) | 25 kT |
| Hardtack I | Yellowwood | 1958-05-26 | Enewetak Enjebi (Janet) | 330 kT |
| Hardtack I | Magnolia | 1958-05-26 | Enewetak Runit (Yvonne) | 57 kT |
| Hardtack I | Tobacco | 1958-05-30 | Enewetak Enjebi (Janet) | 12 kT |
| Hardtack I | Sycamore | 1958-05-31 | Bikini Namu (Charlie) | 92 kT |
| Hardtack I | Rose | 1958-06-02 | Enewetak Runit (Yvonne) | 15 kT |
| Hardtack I | Umbrella | 1958-06-08 | Enewetak Pokon (Irvin) | 8.00 kT |
| Hardtack I | Maple | 1958-06-10 | Bikini Yurochi aka Irioj (Dog) | 213 kT |
| Hardtack I | Walnut | 1958-06-14 | Enewetak Enjebi (Janet) | 1.0 MT |
| Hardtack I | Aspen | 1958-06-14 | Bikini Namu (Charlie) | 319 kT |
| Hardtack I | Linden | 1958-06-18 | Enewetak Runit (Yvonne) | 11 kT |
| Hardtack I | Redwood | 1958-06-27 | Bikini Yurochi aka Irioj (Dog) | 412 kT |
| Hardtack I | Elder | 1958-06-27 | Enewetak Enjebi (Janet) | 880 kT |
| Hardtack I | Oak | 1958-06-28 | Enewetak Bogallua (Alice) | 9.0 MT |
| Hardtack I | Hickory | 1958-06-29 | Bikini Eninmen (Tare) | 14 kT |
| Hardtack I | Sequoia | 1958-07-01 | Enewetak Runit (Yvonne) | 5.00 kT |
| Hardtack I | Cedar | 1958-07-02 | Bikini Namu (Charlie) | 220 kT |
| Hardtack I | Dogwood | 1958-07-05 | Enewetak Enjebi (Janet) | 397 kT |
| Hardtack I | Poplar | 1958-07-12 | Bikini Namu (Charlie) | 9.0 MT |
| Hardtack I | Scaevola | 1958-07-14 | Enewetak Runit (Yvonne) | 0 kT |
| Hardtack I | Pisonia | 1958-07-17 | Enewetak Runit (Yvonne) | 255 kT |
| Hardtack I | Juniper | 1958-07-22 | Bikini Eninmen (Tare) | 65 kT |
| Hardtack I | Pine | 1958-07-26 | Enewetak Enjebi (Janet) | 2.0 MT |
| Hardtack I | Teak | 1958-08-01 | Johnston Island | 4.0 MT |
| Hardtack I | Quince | 1958-08-06 | Enewetak Runit (Yvonne) | 0 kT |
| Hardtack I | Orange | 1958-08-12 | Johnston Island | 4.0 MT |
| Hardtack I | Fig | 1958-08-18 | Enewetak Runit (Yvonne) | 0.02 kT |