Volcano Alert Tracker — USGS Elevated Volcanoes avatar

Volcano Alert Tracker — USGS Elevated Volcanoes

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Volcano Alert Tracker — USGS Elevated Volcanoes

Volcano Alert Tracker — USGS Elevated Volcanoes

Get all currently elevated-alert-level US volcanoes from the official USGS Volcano Hazards Program: alert level, aviation color code, observatory, and a link to the full notice. For aviation, geology, and disaster-preparedness use.

Pricing

Pay per usage

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Developer

Timothy Kelvin

Timothy Kelvin

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5 days ago

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Get all currently elevated-alert-level US volcanoes from the official USGS Volcano Hazards Program: alert level, aviation color code, observatory, and a link to the full daily notice.

Built for aviation (volcanic ash is a real flight-safety hazard), geology researchers, and disaster-preparedness teams who want current status without checking each observatory's page by hand.

Input

{
"observatory": "",
"minAlertLevel": "ADVISORY",
"maxResults": 25
}
FieldTypeDescription
observatorystring (optional)Limit to one USGS observatory by abbreviation, e.g. "avo" (Alaska), "hvo" (Hawaii), "cvo" (Cascades), "yvo" (Yellowstone), "nmi" (Northern Mariana Islands).
minAlertLevelstring"ADVISORY", "WATCH", or "WARNING". This actor only ever returns volcanoes above NORMAL; use this to narrow further. Default "ADVISORY" (all elevated volcanoes).
maxResultsnumberMax volcanoes to return. Default 25, max 100.

Output

One record per volcano currently above normal alert status:

{
"volcanoName": "Great Sitkin",
"volcanoNumber": "311120",
"observatory": "Alaska Volcano Observatory",
"observatoryAbbr": "avo",
"alertLevel": "WATCH",
"aviationColorCode": "ORANGE",
"noticeIssued": "2026-08-15 19:33:58",
"noticeUrl": "https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-AVO-2026-08-15T19:32:26+00:00"
}

At any given time only a handful of US volcanoes are elevated — a request that finds none still returns no items but is billed once.

How it works

Direct calls to the official USGS Volcano Hazards Program API — no proxy, no key, no scraping. Public U.S. government data, updated as observatories issue new notices (typically daily for active volcanoes, immediately for status changes).

Pricing note

Billed per check, not per volcano returned — one charge whether the check returns 0 volcanoes or 100.