Coastal Erosion

Hazard in Coastal and Tropical Hazards

A chronic, long-term hazard that steadily moves the shoreline inland, threatening property, roads and habitat.

Plans also call it: shoreline erosion, beach erosion, bluff erosion

Talk to us about Coastal ErosionAll 73 hazards →

What you’d hand your council

The first page of a Coastal Erosion evidence brief: likelihood, impact and readiness on your own scale, every figure sourced.

Evidence brief for Cedar Ridge County (example)

September 14, 2026

Coastal Erosion

Hazard in Coastal and Tropical Hazards, on the established threats & hazards list

Impact
5432112345

Likelihood

Likelihood
2

Unlikely — Possible but infrequent — roughly once in 50 to 100 years (1–2% chance in any year).

Impact
2

Minor — Limited effects — few injuries, damage confined to a small area, brief localized disruption of services.

Readiness
4

High — The organization has a well-developed capability to manage this threat or hazard. Plans, personnel, resources, and skills are largely in place, and the capability has been meaningfully tested or demonstrated. Remaining gaps are unlikely to significantly impair performance.

  • 2source documents
  • 58verified mentions
  • —federal declarations
  • —NRI risk score
Worked example: Cedar Ridge County is fictional. The scores illustrate the format and are nobody's decision. Open a full sample brief →

The national record

FEMA’s National Risk Index doesn’t model Coastal Erosion. Your team fills it with local evidence, and Hazzard shows the gap rather than a zero.

How it maps

The same hazard in the vocabularies your plan and FEMA already use.

FEMA National Risk Index
Not covered
FEMA declaration incident type
Not covered
NOAA Storm Events type
Not covered
Hazzard category
Coastal and Tropical Hazards, natural hazards

How it connects

The national record

What the federal data says about Coastal Erosion: nothing yet

No federal dataset scores Coastal Erosion or files declarations under it. That's common for threats and emerging hazards, and it's why a brief for Coastal Erosion is built from your own plans, exercises and records. Hazzard shows the gap instead of inventing a number.

In your plan

What a Coastal Erosion profile needs, and where each part comes from

A local hazard mitigation plan profiles each hazard the same way (44 CFR 201.6). Here is how Hazzard fills each part for Coastal Erosion.

  1. Location

    44 CFR 201.6(c)(2)(i)

    Your documents

    No national layer maps Coastal Erosion. We draw the geographic extent from your plans, studies and annexes, cited to the page.

  2. Extent

    44 CFR 201.6(c)(2)(i)

    Your documents

    The magnitude your plans use for Coastal Erosion (a scale, a depth, an acreage, a duration), read from your documents and cited, so the profile states the strength you plan for.

  3. Previous occurrences

    44 CFR 201.6(c)(2)(i)

    Your documents

    FEMA files no declaration type for Coastal Erosion. The history comes from your after-action reports, incident records and plans.

  4. Probability of future events

    44 CFR 201.6(c)(2)(i)

    Your team decides

    No national dataset gives a frequency for Coastal Erosion. Your team scores likelihood on your scale from the evidence we organize.

  5. Vulnerability and impacts

    44 CFR 201.6(c)(2)(ii)

    Your documents

    The Census population profile and HHS emPOWER counts for context; the consequences themselves come from your plans and exercises.

  6. The assessment itself

    Your team decides

    Likelihood, impact and readiness for Coastal Erosion are drafted with every source attached, and a person on your team accepts each one. Hazzard never records a score on its own.

How we can help

How we’d help you prepare for Coastal Erosion

  1. 1

    We pull your coastal record

    Hurricane and coastal declarations, NRI's hurricane, coastal flooding and tsunami ratings, and the mitigation FEMA has already funded.

  2. 2

    We read the plans you already have

    Mitigation plan, evacuation and coastal material, so what they say about Coastal Erosion is cited rather than assumed.

  3. 3

    You leave with a cited brief

    Likelihood, impact and readiness for Coastal Erosion on your own scale, every figure tied to its source, ready for the planning team or the council.

Also in Coastal and Tropical Hazards

Preparing for Coastal Erosion

Plan for Coastal Erosion with the record of your own coastline.

Coastal hazards arrive together: wind, surge and erosion in one event. We keep their evidence apart so each gets its own score and its own actions. A person replies within one business day.

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