Which choice below is NOT considered a potential hazard resulting
from natural events?

A.
Forest fire

B.
Urban fire

C.
Arson

D.
Earthquake/land shift

Explanation:
According to the NFPA, arson is an example of a potential hazard
caused by a human event. Fires, in themselves, are considered
natural events, like forest fires, range fires, urban or city fires, unless
arson is thought to be the source of the blazE. Of the three categories
of potential hazards (natural, technological, and human), human
events could include:
General strikes
Terrorism
Sabotage
Mass hysteria
Civil unrest
Source: NFPA 1600 Standard on Disaster/Emergency Management
and Business Continuity, National Fire Protection Association, 2000
edition.