Next free-source hunt
We check for new free data every weekday.
Datasets / OSINT
volcanoes.usgs.gov/

USGS Volcano Hazards Program CAP alerts feed (HANS)

Freeauth: noneCustom#osint#event-data#real-time#volcanoes#hazards#rss✓ verified Nov 9, 2026

USGS Volcano Hazards Program CAP alerts feed (HANS)

The USGS "Hazard Notification System (HANS) for Volcanoes" publishes Volcano Hazards Program notices as a Common Alerting Protocol RSS feed. Items carry an observatory contact address, a title naming the volcano, notice type and alert level with aviation colour code, a short description, a per-volcano CAP link and a DOI-USGS identifier.

Required Attribution:

Requested, not required: "When using information from USGS information products, publications, or websites, we ask that proper credit be given." Suggested short form: "Credit: U.S. Geological Survey".

Coverage

US volcanoes monitored by the USGS volcano observatories; the HANS site groups notices under AVO, CalVO, CVO, HVO, NMI and YVO. The feed carries current notices (daily, weekly and monthly updates, volcano activity notifications and Volcano Observatory Notices for Aviation). History start, update frequency and delay: Not stated.

Verdict

A live, keyless alert feed for US volcanic unrest: alert level and aviation colour-code changes land here as structured CAP items with per-volcano links. The feed's own copyright field says "public domain", and the USGS copyrights page says: "USGS-authored or produced data and information are considered to be in the U.S. Public Domain." The same page notes that some non-USGS photographs, images and graphics on USGS sites are copyrighted and need the holder's permission. This is the USGS operational notice feed and is distinct from the Smithsonian Global Volcanism Program entry already in the catalog, which is a different provider's volcano and eruption database. Signal Lab links only.

Get the free weekly email

Free weekly email of newly verified free data. Unsubscribe by emailing us.

Information and education only. Not financial, investment, legal or tax advice. Listings can be inaccurate, incomplete or out of date and are provided "as is". Free tiers, limits and licenses belong to each provider and can change, so check the provider's own terms before you rely on them. Terms & Disclaimer