Large-Scale Protest / Mass Gathering

Hazard in Civil / Societal Disruption

A crowd-density hazard at protests, festivals and events, where surges, heat and medical calls escalate quickly.

Plans also call it: demonstration, special event, crowd crush, stampede, large public event

Talk to us about Large-Scale Protest / Mass GatheringAll 73 hazards →

What you’d hand your council

The first page of a Large-Scale Protest / Mass Gathering evidence brief: likelihood, impact and readiness on your own scale, every figure sourced.

Evidence brief for Cedar Ridge County (example)

September 14, 2026

Large-Scale Protest / Mass Gathering

Hazard in Civil / Societal Disruption, 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 Large-Scale Protest / Mass Gathering. 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
Civil / Societal Disruption, human-caused and societal

The national record

What the federal data says about Large-Scale Protest / Mass Gathering: nothing yet

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

In your plan

What a Large-Scale Protest / Mass Gathering 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 Large-Scale Protest / Mass Gathering.

  1. Location

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

    Your documents

    No national layer maps Large-Scale Protest / Mass Gathering. 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 Large-Scale Protest / Mass Gathering (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 Large-Scale Protest / Mass Gathering. 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 Large-Scale Protest / Mass Gathering. 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 Large-Scale Protest / Mass Gathering 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 Large-Scale Protest / Mass Gathering

  1. 1

    We pull who depends on it

    HHS emPOWER counts of electricity-dependent residents and the Census profile of your county, before we meet.

  2. 2

    We read your continuity plans

    Your EOP, continuity and mass-care material, so what they say about Large-Scale Protest / Mass Gathering is cited and the gaps are visible.

  3. 3

    You leave with a cited brief

    Likelihood, impact and readiness for Large-Scale Protest / Mass Gathering on your own scale, every figure tied to its source, ready for the planning team or the council.

Also in Civil / Societal Disruption

Preparing for Large-Scale Protest / Mass Gathering

Prepare for Large-Scale Protest / Mass Gathering with the people it would reach in view.

Outages and disruptions are measured in who is left without, not in acres. We put your plans next to the residents who depend on power, fuel and supply the most. A person replies within one business day.

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