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5
High

landslide Landslide Risk in Portland, OR

Risk Level: High — Score 5/10

FEMA: 5Historical: 10

Key Risk Factors

  • Moderate risk rating based on FEMA National Risk Index
  • Estimated annual loss of $296K from this hazard type
  • 34 events recorded in proximity in recent decades
  • 17 events in the last 12 months indicate ongoing risk
  • Average annual frequency: 2.0 events per year

Last significant event: Landslide - American Cordillera, NE of Portland, Oregon, United States (2025-03-30) — 138 people exposed

Highest Risk Cities for Landslides

1
FEMA: 7Historical: 10
2
FEMA: 7Historical: 9
3
FEMA: 7Historical: 10
4
FEMA: 7Historical: 10
5
FEMA: 7Historical: 10
6
FEMA: 7Historical: 5
7
FEMA: 7Historical: 10
8
FEMA: 7Historical: 10
9
FEMA: 7Historical: 5
10
FEMA: 5Historical: 0
Portland is not in the top 10 for landslide risk among tracked cities.

How Portland Compares

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Notable Landslide Events Near Portland

Landslide - American Cordillera, SE of Portland, Oregon, United States

August 22, 2024 WARNING

619 people exposed; $76M capital exposed

Landslide - American Cordillera, NE of Portland, Oregon, United States

March 29, 2025 WATCH

138 people exposed; $10M capital exposed

Landslide - American Cordillera, SE of Portland, Oregon, United States

March 23, 2025 WARNING

154,000 people exposed; $16,752M capital exposed

Landslide - American Cordillera, W of Portland, Oregon, United States

November 14, 2024 WARNING

1,270 people exposed; $132M capital exposed

Landslide - American Cordillera, SE of Portland, Oregon, United States

February 18, 2025 WARNING

17,500 people exposed; $1,201M capital exposed

Landslide Preparedness Tips

  • 1.Learn the signs of an impending landslide — new cracks, tilting trees, unusual water flow
  • 2.Avoid building near steep slopes, drainage channels, or past slide areas
  • 3.Plant ground cover on slopes to stabilize soil and reduce erosion
  • 4.Create proper drainage around your property to direct water away from slopes
  • 5.Have an evacuation plan ready if you live in a landslide-prone area

Related Pages

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