Natural Disasters in Anchorage, AK
Hazard risk, disaster history, and FEMA data
Natural Hazard Risk
Source: FEMA National Risk IndexRisk Score
97.4
Relatively High
Expected Annual Loss
98.4
Score (0-100)
Social Vulnerability
11.4
Score (0-100)
Community Resilience
34.8
Score (0-100)
Top Hazard Risks
| Hazard | Risk Score |
|---|---|
| Earthquake | 99.5 |
| Landslide | 98.9 |
| Winter Weather | 98.8 |
| Avalanche | 97.1 |
| Volcanic Activity | 87.3 |
| Wildfire | 78.6 |
| Tsunami | 53.8 |
| Lightning | 38.6 |
| Coastal Flood | 28.0 |
| Cold Wave | 27.9 |
| Ice Storm | 22.5 |
| Hail | 7.2 |
| Tornado | 0.4 |
Scores range from 0 (lowest risk) to 100 (highest risk) relative to all U.S. communities. Data from FEMA National Risk Index.
Disaster Declarations
Source: FEMA OpenFEMATotal Declarations
7
Most Recent
Biological
Apr 2020
Most Common Type
Biological
2 declarations
| Date | Type | Declaration |
|---|---|---|
| Apr 9, 2020 | Biological | COVID-19 PANDEMIC |
| Mar 13, 2020 | Biological | COVID-19 |
| Jan 31, 2019 | Earthquake | EARTHQUAKE |
| Nov 30, 2018 | Earthquake | EARTHQUAKE |
| Apr 26, 2003 | Severe Storm | SEVERE WINTER STORM, INCLUDING HIGH WINDS AND FREEZING TEMPERATURES |
| Feb 17, 2000 | Severe Storm | SEVERE WINTER STORMS AND AVALANCHES |
| Oct 13, 1995 | Flood | FLOODING |
Individual Assistance
Source: FEMA Housing AssistanceTotal IA Registrations
7,405
Total IA Distributed
$20,169,873
Repair/Replace
$17,144,208
Rental Assistance
$1,825,463
| Disaster | Registrations | Total IA $ | Avg Damage |
|---|---|---|---|
| DR-4893 | 1 | N/A | — |
| DR-4503 | 1 | N/A | — |
| DR-4413 | 6,866 | $19,045,955 | $1,122 |
| DR-4533 | 242 | $1,001,427 | — |
| DR-1461 | 295 | $122,491 | $869 |
Individual and household assistance for homeowners and renters affected by federally declared disasters.
Flood Insurance (NFIP)
Source: FEMA NFIPTotal Claims
79
Total Claims Paid
$267,896
Avg Claim Payout
$3,391
County-level NFIP data from FEMA National Flood Insurance Program.
Hazard Mitigation
Source: FEMA Hazard Mitigation AssistanceMitigation Projects
28
Federal Funding
$4,625,257
Properties Protected
200
Avg Benefit-Cost Ratio
65.35
BCR
Top Mitigation Project Types
| Project Type | Projects | Federal $ |
|---|---|---|
| 205.4: Non Structural Retrofitting/Rehabilitating Public Structures - Seismic | 9 | $1,252,263 |
| 205.6: Structural Retrofitting/Rehabilitating Public Structures - Seismic | 4 | $543,122 |
| 400.1: Utility Protective Measures (Electric, Gas, etc.) | 4 | $1,021,500 |
| 904.1: Advanced Assistance | 3 | $0 |
| 301.1: Shoreline Stabilization (Riprap, etc.); 402.1: Infrastructure Protective Measures (Roads and Bridges) | 2 | $1,000,506 |
Federally funded projects to reduce future disaster risk. Only includes completed or obligated projects.
Anchorage has a relatively high overall natural hazard risk rating according to FEMA's National Risk Index. The top hazard risks are earthquake, landslide, winter weather. The area has had 7 federal disaster declarations. The most common disaster type is biological (2 declarations). 79 flood insurance claims have been filed in the area. $20,169,873 has been distributed in individual assistance to disaster-affected residents. 28 hazard mitigation projects have been funded to reduce future risk.