Thordarhyrna
| Thordarhyrna | |
|---|---|
  Thordarhyrna | |
| Highest point | |
| Listing | List of volcanoes in Iceland |
| Coordinates | 64°12′4″N 17°0′17″W / 64.20111°N 17.00472°W |
| Geology | |
| Mountain type | Subglacial volcano |
| Last eruption | 1910 |
Thordarhyrna[pronunciation?] (Icelandic: Þórðarhyrna) is one of seven[1] subglacial volcanoes beneath the Vatnajokull glacier Iceland.
Eruptions
It last erupted in 1910 and prior to that in 1903.[2][3]
An eruption in 3550 BC +/- 500 years poured out 150,000,000 cubic meters of lava in the area Bergvatnsarhraun to the south of Thordarhyrna.[4]
An eruption 1887 to 1889 eruption had a (VEI) of 2 [5]
Geology
There is a mechanical interaction between Thordarhyrna and Grimsvötn, despite these volcanoes being relatively far apart,[6] so the eruption in 1902 - 1904 was combined with an eruption from Grimsvötn and had a Volcanic Explosivity Index (VEI) of 4 [7]
A fault runs (N.35°W) from Thordarhyrna towards Hamarinn, and separates two different tectonic regions.[8]
See also
References
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2012-03-09. Retrieved 2011-05-24.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help)CS1 maint: archived copy as title (link) Figure 2.8 shows 7 volcanoes beneath the glacier - ^ "Archived copy". Archived from the original on 2012-12-21. Retrieved 2011-05-24.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help)CS1 maint: archived copy as title (link) Eruptions in Iceland since 1900 - ^ "Archived copy". Archived from the original on 2011-05-27. Retrieved 2011-05-27.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help)CS1 maint: archived copy as title (link) - ^ [1]
- ^ [2]
- ^ [3]
- ^ [4]
- ^ [5] Surface and bedrock topography mapped by radio echo sounding
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