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Alaska · FEMA + NOAA + National Risk Index

Aleutians East Borough, AK

3 FEMA disaster declarations (2000-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Biological.

3
FEMA declarations
2
Major disasters
21
NRI risk · Very Low
Biological
Top hazard

The verdict

The declaration register is comparatively quiet for Aleutians East Borough. Its 3 federal records sit 58% below the Alaska county mean and above the count for 1% of counties nationally. That historical total does not set the National Risk Index: FEMA's separate loss-and-vulnerability model ranks the county safer than 21%.

Safer than 21%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
3
FEMA declarations vs 21 national county avg
2
biological declarations, the most common hazard here

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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How does Aleutians East Borough compare?

Aleutians East Borough vs. all counties in this dataset

FEMA disaster declarations, all-time

3 1st percentile higher than 1% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-03

Aleutians East Borough's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Alaska county average

0/100100/100Alaska avg36/10021.3/100
FEMA National Risk Index composite score vs. the Alaska county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Aleutians East Borough is led by Tsunami (about $2.3M Expected Annual Loss, Historical Loss Ratio Relatively Low), while Volcanic Activity carries the highest National Risk Index rating (Relatively High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Aleutians East Borough's hazard record show?

Declaration frequency

Aleutians East Borough's federal file is quiet on both comparisons: 3 declarations, 58% below the Alaska county mean. Of those, 2 use the Major Disaster code. The register covers 20 years and averages 0.1 entries a year. Biological is the most frequent incident label at 2. A small federal count does not include undeclared local events and is not evidence of zero hazard exposure.

FEMA National Risk Index

This county's FEMA National Risk Index composite lands at 21.3/100 (Very Low), a modest reading against the rest of the country. Expected Annual Loss is rated Very Low (roughly $4.1M in annualized losses), tempered or compounded by a Very High social-vulnerability score and Very Low community-resilience score. Of the 18 hazards FEMA models, Volcanic Activity stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 12 years here, based on 21 historical events on record.

Reading the federal records together

No paid-claim row for this county appears in the NFIP county table used by PlainHazard. That absence is not evidence that flooding never occurred: the register observes claims under federal flood-insurance policies, not uninsured losses, emergency reports, or every flood outside the program. The FEMA declaration history below is therefore the available federal-action record on this page.

Start with the state benchmark: a Alaska county averages 7.2 federal declaration records, while Aleutians East Borough has 3. The gap is 58% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

29 /100

Historical Activity Index

Moderate historical activity

Aleutians East Borough, AK · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) Low
2/30

3 OpenFEMA declarations, full ingest window (0.1x national county average)

County Disaster Density Low
5/25

3 declarations (0.4x state county average of 7)

Major Disaster Share High
17/25

2 of 3 declarations are major disasters (67%)

Hazard Diversity Moderate
5/20

2 different disaster types declared in Aleutians East Borough

Historical Declaration Activity

Activity Band

Low

vs. Alaska Avg

-58%

State avg: 7.2

vs. National Avg

-86%

National avg: 20.7

Avg Per Year

0.1

Over 20 years

FEMA NRI 8-hazard radar - Aleutians East Borough

Aleutians East Borough NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 0, Hurricane 0, Tornado 8, Wildfire 8, Drought 0, Heat Wave 0, Winter Storm 8. The simple mean of these eight displayed scores is 6 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 6 8-hazard mean
Aleutians East Borough NRI risk profile FIPS 02013 · displayed-hazard mean 6/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

3

Low volume

Major Disaster share

67%

Major-heavy

NRI risk score

21

Very Low

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Aleutians East Borough?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Volcanic Activity Relatively High roughly once every 12 years
Landslide Relatively Moderate an average of 28 times per year
Earthquake Relatively Low roughly once every 6 years
Tsunami Relatively Low roughly once every 3 years
Avalanche Very Low roughly once every 15 years
Winter Weather Very Low an average of 6.1 times per year
Ice Storm Very Low roughly once every 67 years
Tornado Very Low roughly once every 69 years
Lightning Very Low roughly once every 2 years
Wildfire Very Low roughly once every 100,000 years
Riverine Flooding No Rating roughly once every 28 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Biological 2
Severe Storm 1

What Biological declarations mean here

Biological is the most frequent declaration type on Aleutians East Borough's record, 67% of its declarations. In practice this category is dominated by the COVID-19 declarations of 2020, which were issued across every US state and territory rather than in response to any local hazard event.

This has a direct consequence for how Aleutians East Borough's number should be read. Because those declarations reached essentially every county in the country, they raise every county's total by a similar amount and tell you nothing about local hazard exposure. A county whose record is led by Biological declarations is, in most cases, a county with a genuinely quiet weather-hazard history, the pandemic records are simply the largest thing in an otherwise short list.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 2 66.7%

of all 3 declarations

Emergency - 1 33.3%

of all 3 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2000 1

Disaster Declarations

How the 3 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 3 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4533 COVID-19 PANDEMIC DR Biological 2020-04-09
3446 COVID-19 EM Biological 2020-03-13
1316 SEVERE WINTER STORMS AND AVALANCHES DR Severe Storm 2000-02-17

Storm Events in Alaska

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Aleutians East Borough.

Storm Type Events Fatalities Injuries Property Damage
High Wind 709 0 1 $8.4M
Blizzard 524 0 0 $60.0K
Heavy Snow 439 0 0 $0
Winter Storm 385 0 0 $200.0K
Flood 182 0 0 $81.9M

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

FEMA National Risk Index

Overall Risk

Very Low

Score: 21.3/100

Expected Annual Loss

Very Low

$4.1M/year

Social Vulnerability

Very High

Community Resilience

Very Low

Hazard Risk Breakdown

Volcanic Activity Relatively High
Landslide Relatively Moderate
Earthquake Relatively Low
Tsunami Relatively Low
Avalanche Very Low
Winter Weather Very Low
Ice Storm Very Low
Tornado Very Low
Lightning Very Low
Wildfire Very Low
Coastal Flooding No Rating
Cold Wave No Rating
Drought No Rating
Hail No Rating
Riverine Flooding No Rating
Strong Wind No Rating

Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

The model's sharpest exposure here: Volcanic Activity

Volcanic Activity is the rarest hazard in the model and the most locally determined. Its modeled exposure follows proximity to specific known systems rather than any regional pattern.

Worth noting for Aleutians East Borough: the model and the federal record do NOT point at the same hazard. Volcanic Activity carries the highest modeled rating (Relatively High), while the county's declaration history is led by Biological. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Aleutians East Borough's closest FEMA peer: Kalawao County, HI

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Aleutians East Borough. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Aleutians East Borough - capture-dated entries only.

Further reading for this county

Understanding disaster data

FEMA's National Risk Index flags Volcanic Activity as the top modeled exposure here (Relatively High); the guide explains how that model differs from declaration counts.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Aleutians East Borough?
The most common disaster type in Aleutians East Borough is Biological, with 2 declarations. Other disaster types include Severe Storm (1).
How does Aleutians East Borough's FEMA declaration record compare with the Alaska average?
The typical Alaska county has 7.2 FEMA declaration records; Aleutians East Borough has 3, or 58% fewer. Against the national county mean of 20.7, this county's total is 86% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Aleutians East Borough received?
Aleutians East Borough has received 2 major disaster declarations, representing 67% of all 3 disaster declarations.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Aleutians East Borough?
No. In Aleutians East Borough, Volcanic Activity has the highest National Risk Index rating (Relatively High), while Tsunami leads Expected Annual Loss at about $2.3M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Aleutians East Borough?
The most active year for disaster declarations in Aleutians East Borough was 2020, with 2 declarations. The county has FEMA disaster data spanning 2000 to 2020.
What is the FEMA National Risk Index score for Aleutians East Borough?
According to the FEMA National Risk Index, Aleutians East Borough, Alaska has an overall risk score of 21.3 out of 100 (Very Low). The county's social vulnerability rating is Very High and community resilience is Very Low. The Expected Annual Loss (EAL) score is Very Low, representing $4.1M in annualized losses.
Which natural hazard poses the greatest risk to Aleutians East Borough?
Based on FEMA NRI data, the highest-risk natural hazard in Aleutians East Borough as of the latest release is Volcanic Activity (risk rating: Relatively High). Other significant hazards include Landslide (Relatively Moderate) and Earthquake (Relatively Low). FEMA's modeled event frequency puts volcanic activity here at roughly once every 12 years, drawn from 21 historical events on record. These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Aleutians East Borough

Against a Alaska county mean of 7 declarations, Aleutians East Borough, AK records 3, or 58% fewer. PlainHazard classifies that historical total as low activity.

  • Major Disaster is the largest group (2 of 3) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Alaska overview
  • Nationally the county exceeds 1% of recorded county totals, but its own Alaska benchmark is higher. The ranking keeps those two contexts separate. Most-disaster rankings
  • With no NFIP county row, the declaration register and modeled NRI remain distinct evidence rather than substitutes for a claims history. Disaster-data guide

A below-average federal record is not a safety guarantee. Use National Weather Service alerts and local emergency-management notices for present conditions, not this historical comparison.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, the data & editorial changelog, or report a data error.