This map uses FEMA data to show disasters in the US by county.
https://explore.data.gov/Other/FEMA-Disaster-Declarations-Summary/uihf-be6u
Fields:
Disaster Number
IH Program Declared ()
IA Program Declared (Individual Assistance)
PA Program Declared (Public Assistance i.e. govt infrastructure)
HM Program Declared (Hazard Mitigation)
State
Declaration Date
Disaster Type
Incident Type
Title
Incident Begin Date
Incident End Date
Disaster Close Out Date
Declared County/Area