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Thordarhyrna vulcano

Aggiornato: 26 nov. 2022 09:08 GMT -
vulcano subglaciale 1650 m / 5413 ft
Southern Iceland, 64.27°N / -17.62°W
Stato attuale: normal or dormant (1 di 5)

Thordarhyrna (Þórðarhyrna) is one of seven active subglacial volcanoes beneath the Vatnajokull glacier in southeastern Iceland. It last has erupted in 1903.

Mostra la mappa interattiva
Stile eruttivo tipico: explosive
Eruzioni del vulcano Thordarhyrna: 1902-04, 1887, 1823

Latest nearby earthquakes

Data / oraMag. / Prof.Distanza/Ubicazione
venerdì, 25 novembre 2022 GMT (2 sismi)
25 nov 2022 14:52 (GMT +0) (25 nov 2022 14:52 GMT)
2.5

10.1 km
25 km (16 mi)
Iceland: 3.0 Km SE of Hamarinn
25 nov 2022 14:51 (GMT +0) (25 nov 2022 14:51 GMT)
2.9

11 km
25 km (16 mi)
Iceland: 2.8 Km E of Hamarinn
lunedì, 21 novembre 2022 GMT (1 sismo)
21 nov 2022 01:02 (GMT +0) (21 nov 2022 01:02 GMT)
2.0

3.3 km
25 km (16 mi)
Iceland: 6.8 Km NNW of Grímsfjall
domenica, 20 novembre 2022 GMT (1 sismo)
20 nov 2022 16:07 (GMT +0) (20 nov 2022 16:07 GMT)
2.0

5.6 km
17 km (10.6 mi)
Iceland: 5.1 Km SW of Grímsfjall

Sfondo

The Thordarhyrna (Þórðarhyrna) central volcano has been moderately active during the past 10,000 years. It is the second and less active central volcano of the Grímsvötn-Laki volcanic system, located about 20 km SW of the more active Grímsvötn central volcano and connected to it by a subglacial mountain ridge.
The volcano has a diameter of 15 km, and is covered by ice 100-600 m thick within the Vatnajökull glacier. The last eruption occurred in 1903 CE. The recent activity has been explosive (phreatomagmatic) basaltic eruptions with tephra volumes ranging from 0.01-1 km3, but several rhyolitic nunataks characterize this volcano. Eruptions are accompanied by jökulhlaups (glacial floods). Being the only second central volcano on a volcanic system with considerable historical volcanic activity, Þórðarhyrna is treated as an independent volcano although the fissure swarm events are shared with the Grímsvötn system.
Source: GVP


See also: Sentinel hub | Landsat 8 | NASA FIRMS

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