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Zufallsfotos
Die Position des Katla-Vulkans und anderer Vulkane auf Island
Die Position des Katla-Vulkans und anderer Vulkane auf Island

 

Katla Vulkan

Unter einem Gletscher liegender Vulkan 1512 m / 4,961 ft
Southern Iceland, 63.63°N / -19.06°W
Aktueller Status: unruhig (2 von 5)
Katla Webcams / aktuelle Daten
Katla volcano books | Tours
Last update: 22 Jun 2017
Typische Aktivität: Explosive basaltic and dacitic eruptions, voluminous lava flows.
Ausbrüche des Katla: 920 AD, 950 AD (?), 1150, 1177, 1245, 1262, 1311, 1357, 1416, 1440, 1450, 1500, 1580, 1612, 1625, 1660-61, 1721, 1755-56, 1823, 1860, 1918, 1955(?), 1999(?), 1918
UhrzeitMag. / TiefeDistanceOrt
Tue, 26 Sep
Tue, 26 Sep 12:45 UTCM 0.5 / 8 km1 km1.6 km WSW of Vatnafjöll
Tue, 26 Sep 08:48 UTCM 0.7 / 0.1 km6 km7.5 km ENE of Hábunga
Tue, 26 Sep 04:53 UTCM 0.6 / 0.9 km1 km8.9 km SW of Básar
Mon, 25 Sep
Mon, 25 Sep 21:22 UTCM 0.5 / 6.5 km2 km7.6 km NNE of Hábunga
Mon, 25 Sep 21:22 UTCM 1.3 / 0.1 km3 km8.6 km NNE of Hábunga
Alle anzeigen
Katla volcano, located near the southern end of Iceland's eastern volcanic zone, is hidden beneath the Myrdalsjökull icecap. Katla is one of Iceland's most active and most dangerous volcanoes, infamous for its large eruptions happening on average every 50-100 year, causing devastating glacial floods (jökullhlaups).
In recent year, increased seismicity and inflation of Katla has been being measured. Katla, statistically due for a new eruption, is being very closely monitored and an eruption in a not too distant future would not come as a big surprise.

Beschreibung:

The subglacial dominantly basaltic volcano is one of Iceland's most active and is a frequent producer of damaging jökulhlaups, or glacier-outburst floods. A large 9 x 14 km subglacial caldera with a long axis in a NW-SE direction is up to 750 m deep. Its high point reaches 1380 m, and three major outlet glaciers have breached its rim.

Although most historical eruptions have taken place from fissures inside the caldera, the Eldgjá fissure system, which extends about 60 km to the NE from the current ice margin towards Grímsvötn volcano, has been the source of major Holocene eruptions. An eruption from the Eldgjá fissure system about 934 AD produced a voluminous lava flow of about 18 cu km, one of the world's largest known Holocene lava flows. Katla has been the source of frequent subglacial basaltic explosive eruptions that have been among the largest tephra-producers in Iceland during historical time and has produced dacitic explosive eruptions during the Holocene.

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Source: GVP, Smithsonian Institute


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