Environmentally Critical Areas

Geologic Hazard Areas

Geologic Hazards are areas that pose a hazard to life and property due to existing geologic conditions, including risk of slide, presence of unstable soils such as peat or liquefaction-prone soils, or elevated exposure to volcanic or seismic events.  Permit applications in geologic hazard areas frequently require additional geotechnical information to address these conditions and may be subject to additional development regulations.  Landslide-prone areas, including steep slopes, are also subject to tree and vegetation requirements to reduce erosion and stabilize slopes.

Addition information on each type of geologic hazard area is available at the following links:

• Landslide prone areas
• Liquefaction prone areas
• Peat Settlement prone areas
• Seismic Hazard Areas (Advisory only)
• Volcanic Hazard Areas (Advisory only)