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Prestahnukur volcano

Shield volcano (subglacial) 1390 m (4,560 ft) (?)
Iceland, 64.6°N / -20.58°W
Current status: normal or dormant (1 out of 5) | Reports
Prestahnukur volcano books
Typical eruption style: Effusive (lava flows).
Prestahnukur volcano eruptions: none during historic times, last eruption radiocarbon-dated at 7550 BC +-500 years
TimeMag. / DepthDistanceLocation
Tue, 29 Sep 2020
Tue, 29 Sep 05:56 UTCM 1.4 / 6.3 km26 km11.7 Km N of Geysir, Iceland
Tue, 29 Sep 05:45 UTCM 1.2 / 7.6 km25 km11.2 Km N of Geysir, Iceland
Tue, 29 Sep 05:33 UTCM 0.6 / 10.1 km26 km12.5 Km NNE of Geysir, Iceland
Tue, 29 Sep 05:02 UTCM 1.1 / 5.7 km26 km11.2 Km N of Geysir, Iceland
Tue, 29 Sep 04:02 UTCM 1.8 / 4.8 km25 km12.9 Km N of Geysir, Iceland
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Prestahnukur volcano is a large subglacial shield volcano in SW Iceland. It is located beneath at the SW end of the Langjökull icecap. Prestahnukur has rift zones to the north and SW. Eruptions occurred from the rift zones in the past 10,000 years.


Hot springs are associated with the rhyolitic Prestahnukur central volcano. The classic Icelandic shield volcano Skjaldbreidur was formed at the southern end of the Prestahnukur volcanic system, between Thorsjökull glacier and Thingvallavatn lake. The broad, low-angle shield volcano produced 17 cu km of basaltic lava flows during the early Holocene.
Source: GVP, Smithsonian Institute

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