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[overstatement in progressive retellings in science]

from firestone -- page 30

"In 1908, at Tunguska, Siberia, a object 150 m in diameter, either a
carbonaceous asteroid or a small, burned-out comet, produced a 15-megaton
airburst with an intense fireball (10^7 °C) that scorched 200 km2 of trees
and leveled 2,000 km2 of forest yet produced no crater or shock
metamorphism (49)."

Wasson JT (2003) Astrobiology 3:163179. (163-179)

note "scorched" -- it did not burn, incinerate, or shock.