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Outside and Vehicle Fire Causes

Causes of outside fires (2022)

2022 National Fire Protection Association estimate of outside fires: 668,500

41.2%
Unintentional
25.6%
Cause undetermined after investigation
20.7%
Intentional
5.1%
Cause under investigation
3.9%
Act of nature
3.1%
Failure of equipment or heat source
0.3%
Exposure

Unknowns apportioned. | Source: National Fire Incident Reporting System.

Causes of vehicle fires (2022)

2022 National Fire Protection Association estimate of vehicle fires: 222,000

42.3%
Unintentional
21.6%
Cause undetermined after investigation
18.8%
Failure of equipment or heat source
10.6%
Cause under investigation
4.3%
Intentional
2.1%
Exposure
0.4%
Act of nature

Unknowns apportioned. | Source: National Fire Incident Reporting System.

See also: Reports on where fires occur