Volcano Alert Levels Screensaver
The Volcano Alert Levels screensaver shows the US volcanoes currently sitting above their normal background level, from the USGS observatories: the ground alert level and the aviation colour code that tells pilots whether ash is a risk. It's free, runs in your browser, and ESC exits.
How the Volcano Alert Levels screensaver works
The saver reads the USGS volcano observatories directly in your browser — no key and no account.
The US volcanoes currently sitting above their normal background level, from the USGS observatories: the ground alert level and the aviation colour code that tells pilots whether ash is a risk..
It refreshes on a schedule, so what you see stays current.
Colours can be changed in settings; nothing is stored beyond your own browser.
A worked example
The US volcanoes currently sitting above their normal background level, from the USGS observatories: the ground alert level and the aviation colour code that tells pilots whether ash is a risk.
Settings & tips
- Accent and Background recolour the display.
- Data comes straight from the USGS volcano observatories in your browser.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from the USGS volcano observatories and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes — free, no download, in your browser.