Yes — it comes from the source named on this page and is refreshed on a schedule.

No. This source is fully key-less.

Yes — free, no download, in your browser.

Does a level of 1 mean an eruption is likely?

No. Level 1 is minor volcanic unrest, and the level describes current activity rather than a forecast of what will happen next.

Do alert levels always move one step at a time?

No. GeoNet notes that levels may not move in sequence, because volcanic activity can change rapidly, and a volcano can erupt at any level.

NZ Volcanic Alert Levels Screensaver

The NZ Volcanic Alert Levels screensaver shows every monitored New Zealand volcano and the alert level GeoNet currently has it on, key-less. It's free, runs in your browser, and ESC exits.

How the NZ Volcanic Alert Levels screensaver works

The saver reads the source described above and draws it on a canvas — no account, no tracking.

Every monitored New Zealand volcano and the alert level GeoNet currently has it on, key-less. New Zealand's scale runs 0 to 5 and describes current state rather than forecast: 0 to 2 are degrees of unrest, 3 to 5 are degrees of eruption.

It refreshes on a schedule, so what you see stays current.

Colours and any options can be changed in settings; nothing is stored beyond your own browser.

What a Volcanic Alert Level says and does not

GeoNet is New Zealand's geological hazard monitoring programme, a collaboration of government agencies that includes Earth Sciences NZ (formerly GNS Science), the Ministry of Business, Innovation and Employment, the Natural Hazards Commission, Land Information New Zealand and the National Emergency Management Agency. Earth Sciences NZ sets the Volcanic Alert Level for each monitored volcano.

The scale runs from 0 to 5. Level 0 is no volcanic unrest, level 1 minor volcanic unrest, and level 2 moderate to heightened volcanic unrest. Levels 3, 4 and 5 describe eruption: minor, moderate and major, with the most likely hazards near the vent at level 3, on and near the volcano at level 4, and on and beyond the volcano at level 5.

The level describes current activity and is not a forecast, and levels do not have to move in sequence because activity can change quickly. GeoNet also sets a separate Aviation Colour Code for the aviation industry. For local hazard advice or travel decisions, follow GeoNet bulletins and civil defence guidance rather than a screensaver.

A worked example

Settings & tips

Accent and Background recolour the display.
Every number on screen comes from the live source — nothing is simulated.
Press ESC to leave fullscreen.

Frequently asked questions

Is this real data?: Yes — it comes from the source named on this page 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.
Does a level of 1 mean an eruption is likely?: No. Level 1 is minor volcanic unrest, and the level describes current activity rather than a forecast of what will happen next.
Do alert levels always move one step at a time?: No. GeoNet notes that levels may not move in sequence, because volcanic activity can change rapidly, and a volcano can erupt at any level.

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