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Public-images-osm logo.svg natural = fumarole
Námafjall in summer 2009 (2).jpg
A fumarole is an opening in a planet's crust, which emits steam and gases Show/edit corresponding data item.
Group: natural
Used on these elements
may be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
See also
Status: approvedPage for proposal

A Fumarole is an opening in a planet's crust, which emits steam and gases. They are found in volcanic areas and geothermal fields.

See also Fumarole on Wikipedia

How to map

Set a node node and add natural=fumarole.

Similar tags

Fumaroles are similar to geysers and hot_springs. There are a few key differences:

  • Hot Springs produce hot water.
  • Fumaroles emit small quantities of steam/gas (no liquid water, but they may cause nearby water to boil).
  • Geysers dramatically eject a large volume of water and steam in a burst upwards.

Helpful diagram

Examples of fumaroles

Examples of ambiguous situations

Examples of other geothermal features

Extinct fumaroles

Inactive fumarole in the Valley of Ten Thousand Smokes

Fumaroles may become extinct, either as a natural process or if geothermal bores or power plants are constructed nearby. Extinct fumaroles should normally be deleted from OSM. In rare cases, if they are very significant they could be mapped as was:natural=fumarole.

See also

Possible tagging mistakes

If you know places with this tag, verify if it could be tagged with another tag.
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