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Hawaii · FEMA + NOAA + National Risk Index

Kalawao County, HI

2 FEMA disaster declarations (1992-2020), with a FEMA National Risk Index rating of Very Low. Most common hazard: Hurricane.

2
FEMA declarations
2
Major disasters
0
NRI risk · Very Low
Hurricane
Top hazard

The verdict

The declaration register is comparatively quiet for Kalawao County. Its 2 federal records sit 90% below the Hawaii county mean and above the count for 0% 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 1%.

Safer than 1%
of U.S. counties for FEMA National Risk Index score
Very Low
FEMA National Risk Index rating
2
FEMA declarations vs 21 national county avg
1
biological declarations, the most common hazard here

FEMA's National Risk Index and its declaration registry are separate measures. Every record in this county's registry is a Major Disaster (DR) declaration.

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How does Kalawao County compare?

Kalawao County vs. all counties in this dataset

FEMA disaster declarations, all-time

2 0th percentile higher than 0% 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

Kalawao County's FEMA Risk Index score

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

0/100100/100Hawaii avg75/1000.1/100
FEMA National Risk Index composite score vs. the Hawaii county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Kalawao County is led by Riverine Flooding (about $154.5K Expected Annual Loss, Historical Loss Ratio Relatively Low), while Earthquake carries the highest National Risk Index rating (Very Low). 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 Kalawao County's hazard record show?

Declaration frequency

Kalawao County's federal file is quiet on both comparisons: 2 declarations, 90% below the Hawaii county mean. Of those, 2 use the Major Disaster code. The register covers 28 years and averages 0.1 entries a year. Hurricane is the most frequent incident label at 1. A small federal count does not include undeclared local events and is not evidence of zero hazard exposure.

FEMA National Risk Index

This county sits at the very bottom of FEMA's National Risk Index nationally, a composite score of 0.1/100 (rated Very Low). Projected losses are minimal, Expected Annual Loss reads Very Low (roughly $260.4K in annualized losses), and the county's exposure is shaped by a Relatively High social-vulnerability profile and Very High community resilience. Even the county's top-rated hazard, Earthquake, only reaches Very Low on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 72 years here.

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 Hawaii county averages 20.6 federal declaration records, while Kalawao County has 2. The gap is 90% 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.

32 /100

Historical Activity Index

Moderate historical activity

Kalawao County, HI · 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
1/30

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

County Disaster Density Low
1/25

2 declarations (0.1x state county average of 21)

Major Disaster Share Very High
25/25

2 of 2 declarations are major disasters (100%)

Hazard Diversity Moderate
5/20

2 different disaster types declared in Kalawao County

Historical Declaration Activity

Activity Band

Low

vs. Hawaii Avg

-90%

State avg: 20.6

vs. National Avg

-90%

National avg: 20.7

Avg Per Year

0.1

Over 28 years

FEMA NRI 8-hazard radar - Kalawao County

Kalawao County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 8, Flood 8, Hurricane 8, Tornado 8, Wildfire 8, Drought 0, Heat Wave 0, Winter Storm 0. The simple mean of these eight displayed scores is 5 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 5 8-hazard mean
Kalawao County NRI risk profile FIPS 15005 · displayed-hazard mean 5/100
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

2

Low volume

Major Disaster share

100%

Mostly major

NRI risk score

0

Very Low

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

How often does each hazard strike Kalawao County?

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; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Earthquake Very Low roughly once every 72 years
Wildfire Very Low roughly once every 254 years
Volcanic Activity Very Low roughly once every 1,000 years
Coastal Flooding Very Low roughly once every 3 years
Tsunami Very Low roughly once every 2 years
Hurricane Very Low roughly once every 15 years
Landslide Very Low roughly once every 157 years
Tornado Very Low roughly once every 1,731 years
Strong Wind Very Low roughly once every 578 years
Hail Very Low roughly once every 147 years
Riverine Flooding Very Low roughly once every 100 years
Lightning Very Low an average of 42 times per year
Drought No Rating 18 modeled event-days per year

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

Disaster Types

Biological 1
Hurricane 1

What Hurricane declarations mean here

Hurricane is the most frequent declaration type on Kalawao County's federal record, 50% of its declarations. Atlantic tropical systems run on a defined season, 1 June to 30 November, with most activity concentrated between August and October; Pacific and territorial basins run on their own calendars. A single named storm routinely produces one declaration number covering a long corridor of counties at once, well inland as well as on the coast, which is why an affected county's count can jump by several in one year without several separate events having occurred.

One practical distinction matters when reading these records: a tropical declaration usually bundles wind, storm surge and inland rainfall flooding under a single incident, but the insurance behind them is split. Wind damage falls to property insurers, while flood and surge damage is covered only under a separate National Flood Insurance Program policy. That is why a county can show heavy declaration activity and a comparatively small NFIP claims record, or the reverse.

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 - 2 100.0%

of all 2 declarations

FEMA Declarations Timeline

Year Declarations
2020 1
1992 1

Disaster Declarations

Download these 2 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4510 COVID-19 PANDEMIC DR Biological 2020-04-01
961 HURRICANE INIKI DR Hurricane 1992-09-12

Storm Events in Hawaii

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Kalawao County.

Storm Type Events Fatalities Injuries Property Damage
High Surf 3,536 20 28 $672.0K
Heavy Rain 1,044 4 2 $0
Drought 899 0 0 $0
Flash Flood 223 6 4 $125.1M
Strong Wind 127 0 11 $555.8K

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

FEMA National Risk Index

Overall Risk

Very Low

Score: 0.1/100

Expected Annual Loss

Very Low

$260.4K/year

Social Vulnerability

Relatively High

Community Resilience

Very High

Hazard Risk Breakdown

Earthquake Very Low
Wildfire Very Low
Volcanic Activity Very Low
Coastal Flooding Very Low
Tsunami Very Low
Hurricane Very Low
Landslide Very Low
Tornado Very Low
Strong Wind Very Low
Hail Very Low
Riverine Flooding Very Low
Lightning Very Low
Cold Wave No Rating
Drought No Rating
Heat Wave 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: Earthquake

Earthquake is the model's clearest example of a hazard with no season and no warning. Its expected loss is driven less by how often shaking occurs than by how much of the building stock predates modern seismic codes, so exposure can be high in places where nothing has happened for a long time.

Worth noting for Kalawao County: the model and the federal record do NOT point at the same hazard. Earthquake carries the highest modeled rating (Very Low), while the county's declaration history is led by Hurricane. 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

Kalawao County's closest FEMA peer: Kusilvak Census Area, AK

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Kalawao County. 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 Kalawao County - capture-dated entries only.

Further reading for this county

Understanding disaster data

FEMA's National Risk Index flags Earthquake as the top modeled exposure here (Very Low); the guide explains how that model differs from declaration counts.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Kalawao County?
The most common disaster type in Kalawao County is Hurricane, with 1 declaration. Other disaster types include Biological (1).
How does Kalawao County's FEMA declaration record compare with the Hawaii average?
The typical Hawaii county has 20.6 FEMA declaration records; Kalawao County has 2, or 90% fewer. Against the national county mean of 20.7, this county's total is 90% lower. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Kalawao County received?
Kalawao County has received 2 major disaster declarations, representing 100% of all 2 disaster declarations.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Kalawao County?
No. In Kalawao County, Earthquake has the highest National Risk Index rating (Very Low), while Riverine Flooding leads Expected Annual Loss at about $154.5K. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Kalawao County?
The most active year for disaster declarations in Kalawao County was 1992, with 1 declaration. The county has FEMA disaster data spanning 1992 to 2020.
What is the FEMA National Risk Index score for Kalawao County?
According to the FEMA National Risk Index, Kalawao County, Hawaii has an overall risk score of 0.1 out of 100 (Very Low). On social vulnerability the county rates Relatively High; on community resilience, Very High. The Expected Annual Loss (EAL) score is Very Low, representing $260.4K in annualized losses.
Which natural hazard poses the greatest risk to Kalawao County?
Based on FEMA NRI data, the highest-risk natural hazard in Kalawao County is Earthquake (risk rating: Very Low). Other significant hazards include Wildfire (Very Low) and Volcanic Activity (Very Low). FEMA's modeled event frequency puts earthquake here at roughly once every 72 years. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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 Kalawao County

Against a Hawaii county mean of 21 declarations, Kalawao County, HI records 2, or 90% fewer. PlainHazard classifies that historical total as low activity.

  • Major Disaster is the largest group (2 of 2) in a declaration history that remains below its state benchmark; frequency here is not a forecast. Hawaii overview
  • Nationally the county exceeds 0% of recorded county totals, but its own Hawaii 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.