# Thordarhyrna

- **Country:** Iceland
- **Coordinates:** 64.201111, -17.004722
- **Text:** Selected geological features near the Thordarhyrna central volcano and Grímsvötn volcanic system (red outlines).
- **Type:** Subglacial volcano/Icelandic stratovolcano
- **Float:** center
- **Width:** 320
- **Height:** 350
- **Caption:** Aerial view of south-east Vatnajokull (north is top)
- **Listing:** List of volcanoes in Iceland
- **Image Map:** {{maplink|frame=yes|frame-align=center|frame-width=280|frame-height=260|frame-long=-17.5|frame-lat=64.2|zoom=7|raw=[,,,,,,]
- **Map Relief:** 1
- **Other Name:** Þórðarhyrna
- **Elevation M:** 1650
- **Last Eruption:** 1904
- **Label Position:** right

Thordarhyrna is one of seven subglacial volcanoes beneath the Vatnajokull glacier in Iceland. It is a paired active central volcano with Grímsvötn, and can be classified as part of the Grímsvötn-Laki volcanic system, with common fissure swarms to the south.

**Source:** https://en.wikipedia.org/wiki/Thordarhyrna (Wikipedia, CC BY-SA)