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Iceland · Shield volcano

Þeistareykir

Theistareykir

Type
Shield volcano
Elevation
563m
Last eruption
-900
Stóravíti crater, seen here from the SE, is 600 m across and 140 m deep. It is located in the summit area of the Holocene Theistareykjarbunga shield volcano, part of the northernmost subaerial volcanic system along the Eastern Volcanic Zone of Iceland. The youngest dated eruption in this system produced the Theistareykjahraun lava flow about 2,400 years ago.
Stóravíti crater, seen here from the SE, is 600 m across and 140 m deep. It is located in the summit area of the Holocene Theistareykjarbunga shield volcano, part of the northernmost subaerial volcanic system along the Eastern Volcanic Zone of Iceland. The youngest dated eruption in this system produced the Theistareykjahraun lava flow about 2,400 years ago. · Photo: Photo by Michael Ryan, 1984 (U.S. Geological Survey).
Type
Shield volcano
Country
Iceland
Region
Atlantic Ocean / Iceland Neovolcanic Rift Volcanic Province
Elevation
563m
Coordinates
65.883, -16.967
Last eruption
-900
Tectonic setting
Rift zone / Oceanic crust (< 15 km)
Landform
Shield
Major rock type
Basalt / Picro-basalt

Geological summary

The Holocene Theistareykir fissure system, including the basaltic Theistareykjarbunga shield volcano, extends from north of Myvatn lake to the coast of Iceland.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

Eruption history

3 recordedGlossary

Record summary

Confirmed eruptions
3
Uncertain eruptions
0
Span of confirmed record
9500 BCE – 900 BCE
Largest confirmed eruption
VEI 0 (900 BCE, the most recent of 3)
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
9500 BCE~9213 BCE · 1 eruptions · max VEI 06920 BCE~6633 BCE · 1 eruptions · max VEI 01187 BCE~900 BCE · 1 eruptions · max VEI 09500 BCE7493 BCE5200 BCE3193 BCE1187 BCE

Detailed timeline

  1. 900 BCE (±100 yrs)VEI 0Geological estimate
    900 BCE – end unknown
    Storihver (Theistareykjahraun)
  2. 6800 BCEVEI 0Geological estimate
    6800 BCE – end unknown
    Borgarhraun and other flows
  3. 9500 BCEVEI 0Geological estimate
    9500 BCE – end unknown
    Theistareykjabunga shield volcano

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.