Threats / Volcanic Eruption

Volcanic Eruption

Geography decides everything. Ashfall, lahars, and evacuation zones for the few who live in a volcano’s shadow.

ScopeLocalCauseNaturalDriven byLocationImpactMajorLikelihoodRare

Why it matters

What Volcanic Eruption would mean for you

Three numbers decide how important Volcanic Eruption is to your preparedness planning. Impact and Likelihood are general baselines. Vulnerability depends on how prepared you are for this threat.

ImpactMajor8/9

NegligibleCatastrophic

For the small number of households near an active volcano, an eruption is devastating - lahars, pyroclastic flows, and ashfall that collapses roofs, fouls water, and forces long evacuations.

LikelihoodRare2/9

RareFrequent

Negligible for almost everyone, but a real, recurring risk in the volcanic corridors of the Pacific Northwest, Alaska, and Hawaii - which is why it's cataloged for the few it touches.

VulnerabilityNot rated

NegligibleCatastrophic

This number is yours. It measures how hard Volcanic Eruption would actually hit your household given what you already have in place. Rate it in Threat Planning — then all three multiply into your personal threat rating.

Rate it in Threat Planning →

General baselines — How we rate threats →

Be ready

Preparing for Volcanic Eruption

Concrete moves that lower your Vulnerability. Add any of them and we'll track it as an action on your threat list.

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If you live near an active volcano, know your evacuation zones and routes cold.

Keep N95 masks and goggles for ashfall.

Store water and seal food - ash contaminates anything left open.

Protect engine air intakes and HVAC from abrasive ash.

See it on the map

Volcanic Eruption where you live.

Every U.S. volcano and the near-field ground it threatens.

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A national view — this is one of 410+ layers in Area Recon. Open it to zoom to your address, then add the hazards, infrastructure, terrain and resources around you, and read the real numbers for your county.

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