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Named weapon
Ivy Mike blast radius (10.4 Mt)
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Ivy Mike was the first full thermonuclear test, 1 November 1952, at Enewetak. This preset is a 10.4 Mt surface burst, matching a ground test rather than an airburst city card.
Open Ivy Mike in the 3D simulator
Educational estimate only. Blast and heat rings use simplified yield scaling. They ignore terrain, weather, shielding, and weapon design. Casualty counts use WorldPop 2020 residents on an approximately 1 km grid and ignore time of day, commuting, shelter, and evacuation. This is not a targeting or civil-defense tool. About the model.
| Effect | Ground range | What the model means |
|---|---|---|
| Fireball | 3.2 km (2.0 mi) | Maximum luminous radius |
| 20 psi | 5.5 km (3.4 mi) | Heavy destruction |
| 5 psi | 12.2 km (7.6 mi) | Most buildings collapse |
| Thermal | 30.5 km (18.9 mi) | 3rd-degree burns |
| 1 psi | 28.8 km (17.9 mi) | Windows shatter |
Mike was a building-sized cryogenic experiment. The mushroom-cloud scaling on the globe is cinematic plus Glasstone-style dimensions, not a film of 1952.
Surface burst in this model increases local fallout in the simplified overlay and draws a crater. That is the right default for a test shot on an atoll.
Castle Bravo (15 Mt) is the next US Pacific test on this list. Tsar Bomba is larger still, and an airburst.
See this yield on a place
Enewetak Atoll · Bikini Atoll · Novaya Zemlya · New York
Other weapons
Little Boy · Fat Man · W76-2 · W76-1 · W87 · W88 · B83 · B53 · Ivy Mike · Castle Bravo · B41 · Tsar Bomba
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