The air blast from a 1 KT detonation could cause 50% mortality from flying glass shards, to individuals within an approximate radius of 0.17 miles or 0.275 km, or 275 m. This radius increases to approximately 0.3 miles or 0.59 km or 590 m for a 10 KT detonation. Other effects such as the blast-heat, radiation and et cetera have a different shorter impact range((Washington State Department of Health, 'Nuclear Weapon Detonation', July 2002, p.[2])). In the TSAR Bomba test everything within three dozen miles of the impact was vaporized, but severe damage extended to 150 miles or ~242 km radius.