FEMA Records
22
Above median
Guam · FEMA + NOAA + National Risk Index
Guam, GU
22 FEMA disaster declarations (1976-2026), with a FEMA National Risk Index rating of null. Most common hazard: Typhoon.
- 22
- FEMA declarations
- 17
- Major disasters
- Typhoon
- Top hazard
How does Guam compare?
Guam vs. all counties in this dataset
FEMA disaster declarations, all-time
22 Top 43% higher than 57% of 3,266 counties
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
Which hazard drives modeled loss here?
FEMA's modeled annual dollar loss for Guam is led by Hurricane (about $148.7M Expected Annual Loss, Historical Loss Ratio Very High), while Coastal Flooding carries the highest National Risk Index rating (null). 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 Guam's hazard record show?
Reading the federal records together
The NFIP claims register shows a middle-volume loss record here: 182 paid claims, totaling $2.5M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $13.8K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.
The declaration register points in the busier direction. Guam's 22 federal records stand 0% above the Guam county mean of 22.0. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.
Declaration frequency
The FEMA register is busy by both local and national comparisons. It contains 22 entries for Guam, including 17 Major Disaster records, 0% above the Guam county mean. Across the 50-year span, that works out to 0.4 declarations a year. Typhoon leads the file with 13 entries. Declaration type records the federal action taken, not every assistance program approved.
FEMA National Risk Index
Even the county's top-rated hazard, Coastal Flooding, only reaches on FEMA's scale, none of the 18 modeled hazards stand out here. FEMA's modeled frequency puts that hazard at roughly once every 1 years here.
63 /100
Historical Activity Index
High historical activity
Guam, GU · 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) High
16/30
22 OpenFEMA declarations, full ingest window (1.1x national county average)
County Disaster Density High
13/25
22 declarations (1.0x state county average of 22)
Major Disaster Share Very High
19/25
17 of 22 declarations are major disasters (77%)
Hazard Diversity Very High
15/20
6 different disaster types declared in Guam
Historical Declaration Activity
Activity Band
High
vs. Guam Avg
+0%
State avg: 22.0
vs. National Avg
+6%
National avg: 20.7
Avg Per Year
0.4
Over 50 years
FEMA NRI 8-hazard radar - Guam
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.
Major Disaster share
77%
Mostly major
County FIPS
66010
GU state code
Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release
How often does each hazard strike Guam?
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 |
|---|---|---|
| Coastal Flooding | roughly once every 1 years | |
| Earthquake | roughly once every 10 years | |
| Hurricane | roughly once every 3 years | |
| Riverine Flooding | an average of 2.6 times per year | |
| Tsunami | roughly once every 8 years |
Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release
Disaster Types
Typhoon 13
Tropical Storm 3
Biological 2
Severe Storm 2
Hurricane 1
Earthquake 1
What Typhoon declarations mean here
Typhoon is the most frequent declaration type on Guam's federal record, 59% 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 - 17 77.3%
of all 22 declarations
Emergency - 5 22.7%
of all 22 declarations
FEMA Declarations Timeline
| Year | Declarations | |
|---|---|---|
| 2026 | 3 | |
| 2024 | 1 | |
| 2023 | 2 | |
| 2020 | 2 | |
| 2019 | 2 | |
| 2015 | 1 | |
| 2014 | 1 | |
| 2004 | 1 | |
| 2003 | 1 | |
| 2002 | 2 | |
| 1998 | 1 | |
| 1992 | 2 | |
| 1991 | 1 | |
| 1988 | 1 | |
| 1976 | 1 | |
Disaster Declarations
How the 22 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download these 22 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 3648 | TYPHOON BAVI | EM | Typhoon | 2026-07-03 |
| 4921 | SUPER TYPHOON SINLAKU | DR | Typhoon | 2026-06-30 |
| 3644 | TYPHOON SINLAKU | EM | Tropical Storm | 2026-04-11 |
| 3601 | TROPICAL STORM BOLAVEN | EM | Tropical Storm | 2023-10-08 |
| 4715 | TYPHOON MAWAR | DR | Hurricane | 2023-05-25 |
| 3594 | TYPHOON MAWAR | EM | Tropical Storm | 2023-05-22 |
| 4495 | COVID-19 PANDEMIC | DR | Biological | 2020-03-27 |
| 3466 | COVID-19 | EM | Biological | 2020-03-13 |
| 4433 | TYPHOON WUTIP | DR | Typhoon | 2019-05-07 |
| 4398 | TYPHOON MANGKHUT | DR | Typhoon | 2018-10-01 |
| 4224 | TYPHOON DOLPHIN | DR | Typhoon | 2015-06-05 |
| 4191 | TROPICAL STORM HALONG | DR | Severe Storm | 2014-09-10 |
| 1533 | HIGH WINDS, FLOODING, AND MUDSLIDES AS A RESULT OF TROPICAL STORM TINGTING | DR | Severe Storm | 2004-07-29 |
| 1446 | SUPER TYPHOON PONGSONA | DR | Typhoon | 2002-12-08 |
| 1426 | TYPHOON CHATA'AN | DR | Typhoon | 2002-07-06 |
| 1397 | EARTHQUAKE | DR | Earthquake | 2001-12-05 |
| 1193 | TYPHOON PAKA, TORRENTIAL RAINS, HIGH WINDS, HIGH SURF | DR | Typhoon | 1997-12-17 |
| 957 | TYPHOON OMAR | DR | Typhoon | 1992-08-28 |
| 924 | TYPHOON YURI | DR | Typhoon | 1991-12-04 |
| 887 | TYPHOON RUSS | DR | Typhoon | 1990-12-24 |
Show 2 earlier declaration records
| DR# | Title | Type | Incident | Date |
|---|---|---|---|---|
| 810 | TYPHOON ROY | DR | Typhoon | 1988-01-20 |
| 503 | TYPHOON PAMELA | DR | Typhoon | 1976-05-22 |
Storm Events in Guam
Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Guam.
| Storm Type | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| Drought | 131 | 0 | 0 | $8.3K |
| Tropical Storm | 22 | 9 | 1 | $4.6M |
| Hurricane (Typhoon) | 20 | 8 | 292 | $6.0B |
| Rip Current | 18 | 17 | 17 | $0 |
| Coastal Flood | 14 | 0 | 1 | $3.1M |
Source: NOAA Storm Events Database State-level aggregated data, 2015-2025
NFIP Flood Insurance Claims
Total Claims
182
Total Paid
$2.5M
Avg Per Claim
$13.8K
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
FEMA National Risk Index
Overall Risk
Score: N/A/100
Expected Annual Loss
Relatively High
$215.6M/year
Social Vulnerability
Data Unavailable
Community Resilience
Data Unavailable
Hazard Risk Breakdown
Coastal Flooding
Earthquake
Hurricane
Riverine Flooding
Tsunami
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: Coastal Flooding
Coastal Flooding is modeled separately from riverine flooding because its driver is different: surge, tide and wave action rather than a watershed draining. It is also the hazard whose baseline is moving, since the same storm rides on a higher starting sea level than it used to.
For Guam the two measures on this page point the same way: Coastal Flooding is the county's highest-rated modeled hazard, and Typhoon declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.
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
Guam's closest FEMA peer: Jefferson County, OH
Comparisons use published FEMA declaration fields for Guam. Record similarity, not a safety rating.
Closest declaration profiles
Guam shows 22 FEMA declarations, led by Typhoon.
Similar Major-disaster share
Guam: 17 of 22 of its declarations are Major.
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 Guam - capture-dated entries only.
Further reading for this county
Understanding disaster data
Guam's NFIP claims file (182 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.
More PlainHazard guides
- Most disaster-prone counties - U.S. counties ranked by FEMA declaration totals.
- Understanding disaster data - declarations vs storm events vs NRI scores.
- Preparing for natural disasters - household checklist (not county-specific advice).
Related
Frequently Asked Questions
What is the most common disaster type in Guam?
The most common disaster type in Guam is Typhoon, with 13 declarations. Other disaster types include Tropical Storm (3), Biological (2), Severe Storm (2).
How does Guam's FEMA declaration record compare with the Guam average?
FEMA lists 22 declaration records for Guam. That is 0% above the Guam county mean of 22.0. Its count is also 6% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Guam received?
Guam has received 17 major disaster declarations, representing 77% of all 22 disaster declarations.
How many flood insurance claims has Guam filed?
Guam has 182 National Flood Insurance Program (NFIP) claims totaling $2.5M in payments, with an average of $13.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Guam?
No. In Guam, Coastal Flooding has the highest National Risk Index rating (null), while Hurricane leads Expected Annual Loss at about $148.7M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Guam?
The most active year for disaster declarations in Guam was 2026, with 3 declarations. The county has FEMA disaster data spanning 1976 to 2026.
What is the FEMA National Risk Index score for Guam?
According to the FEMA National Risk Index, Guam, Guam has an overall risk score of N/A out of 100 (null). Social vulnerability here rates Data Unavailable, while community resilience comes in at Data Unavailable. The Expected Annual Loss (EAL) score is Relatively High, representing $215.6M in annualized losses.
Which natural hazard poses the greatest risk to Guam?
FEMA's NRI data points to Guam as of the latest release is Coastal Flooding (risk rating: null). Other significant hazards include Earthquake (null) and Hurricane (null). FEMA's modeled event frequency puts coastal flooding here at roughly once every 1 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.
Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.
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 Guam
Guam, GU has 22 federal declaration records, 0% more than the Guam county mean of 22; its history sits in PlainHazard's high activity band.
- Within this above-state-average declaration file, major disaster leads with 17 of 22 records; the category describes past federal action, not the next likely hazard. Guam overview
- The state benchmark and national rank point the same way: this count tops the Guam mean and the totals for 57% of 3,266 U.S. counties. Most-disaster rankings
- Use the data guide to separate this mid-volume insurance-claims file from declaration counts and modeled NRI risk. Disaster-data guide
An above-average declaration count records past federal responses; it does not predict the next event. Current warnings come from the National Weather Service and local emergency officials.
PlainHazard derives this profile from FEMA's Disaster Declarations Summaries and National Risk Index data. The declaration comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.
All federal data sources used on this page
- FEMA OpenFEMA, Disaster Declarations Summaries v2 - all federally-declared disasters for this county. fema.gov/openfema/disaster-declarations
- FEMA National Risk Index (NRI) - per-county per-hazard risk ratings and expected annual loss. hazards.fema.gov/nri
- NOAA NCEI Storm Events Database - state-level storm/severe-weather event records, 2015-2025. ncdc.noaa.gov/stormevents
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.