Pennsylvania All-Hazard Mitigation & Resilience Hub
Know Your Risk. Build Resilience. Stay Ready.
Know your risk

Hazards

PA Hazard general content

Icon representing flood hazard
Hazard

Flood

Overview: Flooding is Pennsylvania’s most common and damaging natural hazard.

What Drives Flooding

  • Heavy rainfall
  • Snowmelt
  • Ice Jams
  • Tropical remnants
  • Urbanization

Impacts: Property damage, transportation disruptions, erosion, public safety risks.

How to Prepare

  • Know your flood zone
  • Elevate utilities
  • Purchase flood insurance
  • Have a go-kit

Mitigation Actions: Stormwater retrofits, green infrastructure, floodplain restoration, voluntary property buyouts.

Icon representing wildfire hazard
Hazard

Wildfire

Overview: Hotter, drier conditions are increasing wildfire risk across forested landscapes.

What Drives Wildfire

  • Spring dry seasons
  • Escaped debris burns
  • Fuel buildup

How to Prepare

  • Create defensible space
  • Clean gutters and roofs
  • Store firewood away from homes
Icon representing drought hazard
Hazard

Drought

Overview: Periods of low precipitation affect water supply, agriculture, and wildfire conditions.

Early Indicators: Low streamflow, poor soil moisture, reduced groundwater recharge.

Icon representing landslide hazard
Hazard

Landslides

Overview: Slope failures are common in southwestern and central Pennsylvania.

Triggers: Rainfall, freeze-thaw cycles, excavation, steep slopes.

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Hazard

Earthquakes

Overview: While infrequent, Pennsylvania experiences small but measurable earthquakes.

Mitigation Actions: Secure tall furniture, reinforce structures, adopt seismic building practices.

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Hazard

Extreme Weather

Includes:

  • Severe thunderstorms
  • High winds
  • Tornadoes
  • Hail
  • Extreme heat
  • Winter storms
Icon representing mine subsidence hazard
Hazard

Mine Subsidence

Overview: Ground collapse can occur due to historic underground mining.

Prepare & Prevent

  • Check risk maps
  • Consider mine subsidence insurance
  • Consult geotechnical professionals when building