Pricing

from $5.50 / 1,000 volcano status checks

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Volcano Alert Tracker: USGS Elevated Volcanoes

Try for free

Every U.S. volcano at an elevated alert level right now, from the official USGS Volcano Hazards Program: alert level, aviation color code, observatory and the latest notice. For aviation and flight operations, disaster preparedness and insurance teams, and researchers.

Pricing

from $5.50 / 1,000 volcano status checks

Rating

0.0

(0)

Developer

Timothy Kelvin

Actor stats

Bookmarked

Total users

Monthly active users

9 days ago

Last modified

What you get

One row per elevated volcano:

Volcano name and number
Alert level (Advisory, Watch, Warning) and aviation color code (Yellow, Orange, Red)
The observatory monitoring it
When the latest notice was issued, with a link to it

Who this is for

Aviation and flight operations teams: volcanic ash is a flight safety hazard.
Disaster preparedness and insurance teams watching volcanoes near people and property.
Geology researchers and educators following current volcanic activity.

Input

{
  "observatory": "",
  "minAlertLevel": "ADVISORY",
  "maxResults": 25
}

Field	Type	Description
`observatory`	string (optional)	Limit to one USGS observatory by abbreviation, e.g. `"avo"` (Alaska), `"hvo"` (Hawaii), `"cvo"` (Cascades), `"yvo"` (Yellowstone), `"nmi"` (Northern Mariana Islands).
`minAlertLevel`	string	`"ADVISORY"`, `"WATCH"`, or `"WARNING"`. This actor only ever returns volcanoes above NORMAL; use this to narrow further. Default `"ADVISORY"` (all elevated volcanoes).
`maxResults`	number	Max 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.

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