FEMA declarations
25
Low volume
State profile · FEMA + NOAA + National Risk Index
Guam Natural Disasters
Guam has one of the lighter federal disaster records in the country. 25 FEMA disaster declarations are on record, led by typhoon, with $6.1B in combined property and crop damage. A light count doesn't mean zero risk, just fewer events that crossed the federal declaration threshold. NOAA storm event data shows 258 recorded weather events resulting in 38 fatalities, a toll that informs where the state directs disaster-preparedness resources.
- 25
- FEMA declarations
- 258
- NOAA storm events
- 38
- Storm fatalities
- $6.1B
- Property + crop damage
The Guam risk picture
FEMA publishes no National Risk Index rating for Guam: its Social Vulnerability and Community Resilience inputs are recorded as "Data Unavailable" for all 1 counties and county-equivalents, so no composite risk score exists to report, though hurricane drives the largest expected annual loss FEMA does model here. Guam has 19 Major Disaster (DR) declarations; FEMA authorizes Individual Assistance, Public Assistance, or both separately for each declaration. NOAA-tracked storms have caused 320 injuries statewide.
- 0%
- of counties and county-equivalents rated high-risk by FEMA National Risk Index
- 25
- FEMA disaster declarations on record
- $6.1B
- in tracked property + crop damage
- 182
- NFIP flood insurance claims filed statewide
FEMA's National Risk Index and NOAA's Storm Events Database measure different things: modeled long-run risk vs. observed severe-weather events. Storm Events is a reported dataset, so its counts track what was observed and logged, not every event that occurred, and reporting is denser where more people live. See the methodology for how they relate.
Major Disaster share
76%
Mostly major
NOAA storm events
258
Observed severe-weather records
How does Guam compare?
Guam vs. every U.S. state
FEMA disaster declarations, all-time
25 8th percentile higher than 8% of 59 states and territories
Each bar is a band; taller bars hold more states and territories. 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
Do more storms mean more federal disasters?
Guam sits at the 4th percentile of FEMA declaration volume and the 2nd percentile of NOAA storm-event volume among 55 states and territories, those two ranks are not interchangeable.
FEMA declaration rank vs NOAA storm-event rank
Read the chart, every state as text
Percentiles are within this release's state/territory sample. Raw counts are the underlying FEMA and NOAA totals.
| State | FEMA decls | FEMA %ile | NOAA storms | NOAA %ile |
|---|---|---|---|---|
| California | 396 | 98 | 23,694 | 93 |
| Texas | 389 | 96 | 53,309 | 98 |
| Oklahoma | 258 | 95 | 23,896 | 95 |
| Washington | 215 | 93 | 4,408 | 22 |
| Florida | 188 | 91 | 12,838 | 55 |
| Oregon | 169 | 89 | 3,695 | 20 |
| New Mexico | 126 | 87 | 10,974 | 45 |
| Arizona | 120 | 85 | 9,541 | 38 |
| New York | 118 | 84 | 21,653 | 82 |
| Montana | 112 | 82 | 13,576 | 56 |
| Colorado | 111 | 78 | 18,340 | 73 |
| Louisiana | 111 | 78 | 11,204 | 47 |
| Nevada | 110 | 76 | 4,534 | 24 |
| Alabama | 102 | 75 | 14,583 | 64 |
| Kentucky | 98 | 71 | 19,947 | 78 |
| Mississippi | 98 | 71 | 14,100 | 62 |
| Tennessee | 97 | 69 | 16,645 | 69 |
| South Dakota | 96 | 67 | 22,759 | 87 |
| Alaska | 94 | 64 | 2,683 | 15 |
| Kansas | 94 | 64 | 25,115 | 96 |
| Arkansas | 87 | 60 | 13,637 | 58 |
| Nebraska | 87 | 60 | 20,136 | 80 |
| Missouri | 86 | 58 | 22,952 | 89 |
| North Carolina | 85 | 56 | 16,367 | 67 |
| West Virginia | 84 | 55 | 12,026 | 49 |
| Georgia | 81 | 51 | 16,676 | 71 |
| Minnesota | 81 | 51 | 19,109 | 75 |
| Iowa | 78 | 49 | 21,883 | 84 |
| Virginia | 77 | 47 | 23,584 | 91 |
| North Dakota | 75 | 45 | 10,818 | 44 |
| Hawaii | 72 | 44 | 6,200 | 31 |
| Maine | 71 | 42 | 4,781 | 27 |
| Illinois | 68 | 40 | 22,088 | 85 |
| Pennsylvania | 64 | 38 | 19,427 | 76 |
| New Hampshire | 63 | 36 | 2,547 | 11 |
| Vermont | 62 | 35 | 3,449 | 18 |
| Idaho | 60 | 31 | 5,142 | 29 |
| Ohio | 60 | 31 | 16,184 | 65 |
| Massachusetts | 59 | 25 | 6,781 | 33 |
| New Jersey | 59 | 25 | 8,218 | 35 |
| Utah | 59 | 25 | 4,578 | 25 |
| Wisconsin | 56 | 24 | 13,807 | 60 |
| Indiana | 54 | 22 | 12,687 | 53 |
| Puerto Rico | 51 | 18 | 2,944 | 16 |
| South Carolina | 51 | 18 | 10,520 | 42 |
| Michigan | 46 | 16 | 9,052 | 36 |
| Wyoming | 45 | 15 | 12,494 | 51 |
| Connecticut | 43 | 13 | 2,622 | 13 |
| Maryland | 38 | 11 | 10,290 | 40 |
| U.S. Virgin Islands | 33 | 9 | 88 | 0 |
| Rhode Island | 31 | 7 | 924 | 7 |
| Delaware | 26 | 5 | 1,475 | 9 |
| Guam | 25 | 4 | 258 | 2 |
| District of Columbia | 24 | 2 | 452 | 5 |
| American Samoa | 17 | 0 | 292 | 4 |
What shapes Guam's record?
FEMA declaration types in Guam
Wider bars = more declarations of that incident type
- Typhoon
Typhoon
15 declarations
- Tropical Storm 3
Tropical Storm
3 declarations
- Biological 2
Biological
2 declarations
- Severe Storm 2
Severe Storm
2 declarations
- Hurricane 1
Hurricane
1 declarations
- Earthquake 1
Earthquake
1 declarations
- Fire 1
Fire
1 declarations
What this shows Typhoon leads Guam's FEMA declaration mix with 15 records among the types shown.
NOAA storm events by year
Reported severe-weather events in Guam, 2015–2025 catalog window.
Peak year in this series: 2024 (57 events). Counts are reported events, not a complete census.
47 /100
Historical Activity Index
Moderate historical activity
Guam · PlainHazard-derived composite from federal records
This 0–100 index is an explicit PlainHazard composite mixing OpenFEMA declaration totals (1953–present) with NOAA Storm Events (2015–2025), different windows and event definitions, disclosed weights on the methodology page . 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
4/30
25 OpenFEMA declarations, full ingest window (0.3x state average)
NOAA Storm Events (2015–2025) Low
0/25
258 NOAA storm events in the 2015–2025 extract (0.0x median state)
NOAA Damage (2015–2025) Very High
25/25
Recorded NOAA property+crop damage in the 2015–2025 extract (10.6x median state)
Hazard Diversity Very High
18/20
7 different disaster types declared in Guam
What does Guam's hazard record show?
FEMA disaster declarations
Guam (GU) has a low level of federal declaration activity, with 25 FEMA declaration records, including 19 Major Disaster declarations (DR). A DR may authorize Individual Assistance, Public Assistance, or both; those program approvals are not implied by the DR count. The dominant declaration type is Typhoon, followed by Tropical Storm (3), Biological (2), Severe Storm (2). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.
Flood exposure & where to dig deeper
Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 1Guam counties have filed 182 NFIP claims totaling $2.5M, or an average of $13.8K per claim. NFIP data captures only insured flood losses, so uninsured flood damage and storm-surge losses outside mapped high-risk zones remain invisible in this figure. The highest-Expected-Annual-Loss hazard across the state is Hurricane, estimated at $0.1B annually. Drill into individual counties and county-equivalents for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations, state-level averages can mask sharp county-to-county differences in exposure and resilience.
NOAA storm events & FEMA National Risk Index
NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, Guam recorded 258 individual storm events, causing 38 fatalities and 320 injuries, with combined property and crop damage estimated at $6.1B. The most frequent event types in the state are Drought (131 events), Tropical Storm (22 events), Hurricane (Typhoon) (20 events). FEMA's National Risk Index does not rate this jurisdiction: its Social Vulnerability and Community Resilience inputs are published as "Data Unavailable", so no composite score exists for any of its 1counties and county-equivalents.
What this count is, and is not. Storm Events is a reported database: NOAA compiles it from National Weather Service offices, trained spotters, law enforcement, and the public. It is a record of what was observed and logged, not a complete census of severe weather. Densely populated areas report more events than sparsely populated ones with similar meteorological exposure, and detection has improved over time, so an event count is not a like-for-like measure of hazard between places or across decades. Damage figures are field estimates, not audited losses. See methodology.
Disaster Types in Guam
Typhoon 15
Tropical Storm 3
Biological 2
Severe Storm 2
Hurricane 1
Earthquake 1
Fire 1
Storm Events by Type
NOAA storm event data for Guam (2015-2025).
| Event 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 |
| Flash Flood | 12 | 0 | 0 | $39.5K |
| High Surf | 8 | 3 | 9 | $1.0M |
| Tropical Depression | 7 | 0 | 0 | $0 |
| Flood | 7 | 0 | 0 | $500 |
| Thunderstorm Wind | 5 | 1 | 0 | $173.3K |
| Strong Wind | 4 | 0 | 0 | $3.5M |
| Storm Surge/Tide | 2 | 0 | 0 | $200.0K |
| High Wind | 2 | 0 | 0 | $0 |
| Wildfire | 2 | 0 | 0 | $0 |
| Debris Flow | 1 | 0 | 0 | $15.0K |
| Dust Devil | 1 | 0 | 0 | $200 |
| Lightning | 1 | 0 | 0 | $50.0K |
| Astronomical Low Tide | 1 | 0 | 0 | $0 |
Storm Events by Year
| Year | Events | Fatalities | Injuries | Property Damage |
|---|---|---|---|---|
| 2025 | 33 | 2 | 1 | $57.3K |
| 2024 | 57 | 5 | 11 | $102.0K |
| 2023 | 22 | 3 | 0 | $4.0B |
| 2022 | 23 | 3 | 5 | $50.5K |
| 2021 | 19 | 1 | 0 | $5.9M |
| 2020 | 35 | 0 | 0 | $125.0K |
| 2018 | 8 | 1 | 242 | $2.0B |
| 2017 | 7 | 1 | 2 | $1.0K |
| 2016 | 29 | 3 | 3 | $120.0K |
| 2015 | 25 | 19 | 56 | $37.2M |
FEMA Disaster Declarations
How the 25 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.
Download all 25 declarations as CSV . Source data is public domain; our derived presentation is CC0.
25 unique disaster declarations in Guam.
| 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 |
| 2197 | GUAM TIYAN TOTO FIRE COMPLEX | FM | Fire | 1998-03-22 |
| 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 |
| 810 | TYPHOON ROY | DR | Typhoon | 1988-01-20 |
| 503 | TYPHOON PAMELA | DR | Typhoon | 1976-05-22 |
| 153 | TYPHOON OLIVE | DR | Typhoon | 1963-04-30 |
| 140 | TYPHOON KAREN | DR | Typhoon | 1962-11-12 |
NFIP Flood Insurance Claims
National Flood Insurance Program claims across Guam from FEMA NFIP data.
Total Claims
182
Total Paid
$2.5M
Avg Per Claim
$13.8K
Counties With Claims
1
Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data
Counties and county-equivalents in Guam
1 counties and county-equivalents with FEMA disaster data.
| # | Area | Disasters | Major |
|---|---|---|---|
| 1 | Guam | 22 | 17 |
All 1 counties and county-equivalents in Guam are listed above.
Disaster Preparedness Guides
Learn more about natural disaster risk, preparedness, and data interpretation.
Preparing for Natural Disasters
Essential steps to prepare your household for the most common natural hazards.
Hazard Risk by Region
How natural disaster risk varies across different US regions.
Climate Change & Disasters
How climate trends are changing the frequency and severity of natural disasters.
Frequently Asked Questions
What natural disasters affect Guam?
Guam is affected by typhoon, tropical storm, biological, severe storm. Topping the list is Typhoon, based on 25 FEMA disaster declarations on record.
How many FEMA disaster declarations has Guam had?
Guam has received 25 FEMA disaster declarations, including 19 major disaster declarations. The declaration history covers several disaster types, including Typhoon (15), Tropical Storm (3), Biological (2).
What severe weather events are most common in Guam?
The most common severe weather events in Guam include drought (131 events), tropical storm (22 events), hurricane (typhoon) (20 events). Between 2015 and 2025, NOAA recorded these events causing 38 fatalities and $6.1B in property and crop damage.
How active is Guam's federal disaster declaration record?
Guam has a low level of historical federal declaration activity, based on 25 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 38 fatalities and 320 injuries. Combined NOAA-listed property and crop losses total $6.1B.
How many flood insurance claims has Guam had?
Guam has 182 National Flood Insurance Program (NFIP) claims with $2.5M total paid out. Per-claim payments average $13.8K, with 1 counties reporting flood insurance claims.
Which counties and county-equivalents in Guam have the most disaster declarations?
Among 1 counties and county-equivalents in Guam, those with the most FEMA declaration records include Guam (22 declarations). Breaking the declarations down by county reveals patterns a statewide total can mask.
Source: FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) For informational purposes only
What this means for Guam
Guam alone accounts for 88% of Guam's FEMA disaster declarations, out of 1 counties tracked statewide.
- The declaration record is uneven within the state: Guam carry the most FEMA declarations. Browse counties
- See how Guam ranks against other states for disaster frequency and damage. State rankings
- Learn what FEMA declarations, NRI risk scores, and damage figures do and don't tell you. Disaster-data guide
Historical declaration counts and damage totals describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.
PlainHazard derives this presentation from FEMA's Disaster Declarations Summaries. Its county 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.
Related
Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial
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.