Mezue ahịrịokwu na-esonụ: Kemgbe e guzobere ha, AFNSEP akwadowo ihe karịrị nnukwu ọdachi 125, gụnyere 1989
Ọkụ mmanụ Exxon Valdez, ọtụtụ ọkụ ọgbụgba na California, ọdachi ụgbọelu Space Shuttle Columbia, ọtụtụ ajọ ifufe gụnyere Andrew na Katrina, na enyemaka nke ajọ ifufe na United States na mpaghara Pacific.