Prestahnukur volcano

Shield volcano (subglacial) 1390 m (4,560 ft) (?)
Island, 64.6°N / -20.58°W
Current status: normal or dormant (1 out of 5)

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.

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Typical eruption style: Effusive (lava flows).
Prestahnukur volcano eruptions: none during historic times, last eruption radiocarbon-dated at 7550 BC +-500 years

TimeMag. / DepthDistance/Location
Monday, September 20, 2021 03:28 GMT (1 earthquake)
Sep 20, 2021 3:28 am (GMT +0) (Sep 20, 2021 03:28 GMT)
1.3

4.3 km
8.1 km (5 mi)
Iceland: 16.4 Km N of Skjaldbreið
Saturday, September 11, 2021 06:30 GMT (2 earthquakes)
Sep 11, 2021 6:30 am (GMT +0) (Sep 11, 2021 06:30 GMT)
1.5

4 km
30 km (19 mi)
Iceland: 8.5 Km WNW of Geysir
Sep 11, 2021 6:05 am (GMT +0) (Sep 11, 2021 06:05 GMT)
1.4

3.4 km
30 km (19 mi)
Iceland: 7.8 Km W of Geysir

Background

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.
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Source: GVP, Smithsonian Institute


See also: Sentinel hub | Landsat 8
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