ICELAND VOLCANO

Iceland Volcano: Kerlingarfjöll volcano

Iceland Volcano: Kerlingarfjöll volcano
Kerlingarfjöll volcano Data:

Stratovolcano 1488 m (4,882 ft)
SW Iceland, 64.63°N / 19.32°W
Current status: dormant (1 of 5)
Typical eruption style: effusive and explosive.
Eruptions from Kerlingarfjöll: None during historic times
Kerlingarfjöll is a glacially dissected, largely Pleistocene rhyolitic central volcano located SW of the Hofsjökull icecap.

Kerlingarfjöll volcano Background:
Steep-sided Pleistocene rhyolitic lava domes and numerous hot springs occupy two calderas at the center of the 5 x 7 km wide complex. Holocene flank fissures on the NE side produced the Illahraun lava flow, which traveled more than 20 km to the south. Fumarolic activity at Kerlingarfjöll, mostly concentrated in the center of the complex, is the most vigorous in Iceland.
Iceland Volcano

Iceland Volcano: Hofsjökull volcano

Iceland Volcano: Hofsjökull volcano
Hofsjökull volcano Data:
shield volcano (subglacial) 1782 m (5,846 ft)
SW Iceland, 64.75°N / 19.98°W
Current status: dormant (1 of 5)
Typical eruption style:effusive eruptions from flank fissures.
Eruptions from Hofsjökull volcano: None during historic times.

Hofsjökull volcano Background:
Hofsjökull volcano lies along an east-west-trending area connecting the two principal rift zones of Iceland. It bridges the gap between the Reykjanes-Langjökull rift on the west, which terminates at Langjökull, and the eastern zone, which extends NE-ward across east-central Iceland.
The roughly 7 x 11 km central caldera of Hofsjökull volcano lies beneath the western part of the massive Hofsjökull icecap. A small Holocene shield volcano is located at the SW margin of the icecap. Flank fissures north and east of the icecap have produced basaltic lava flows during the Holocene.
Iceland Volcano-langjokull-volcano.

Iceland Volcano: Langjökull volcano

Iceland Volcano: Langjökull volcano

Langjökull volcano Data:

Stratovolcano volcano (subglacial) 1360 m (4,462 ft)
Iceland, 64.75°N / -19.98°W
Current status: dormant (1 of 5)
Typical eruption style: Large effusive eruptions from flank fissures, explosive activity from the summit crater.
Eruptions from Langjökull volcano: ca. 925 AD. The Langjökull central volcano lies at the northern end of an active volcanic zone that extends to the NE from the Reykjanes Peninsula.

Langjökull volcano Background:
Langjökull volcano occupies the NE half of the massive Langjökull icecap, east of the prominent Pleistocene table mountain, Erikskökull. A summit caldera lies beneath the ice. Several shield volcanoes have been constructed along flank fissure zones, and postglacial lava flows flank Langjökull on the northern, western, and eastern sides. One of the most prominent of these is a small shield volcano that was formed at the site of the massive Hallmundahraun lava flow, which covers 200 sq km, and was erupted shortly after 900 AD.
The Geysir thermal area, containing Iceland's largest geysers, lies in the Haukadalur basin, near the southern end of the lengthy fissure system extending from Langjökull central volcano.
Iceland Volcano

Iceland Volcano: Prestahnukur volcano

Iceland Volcano: Prestahnukur volcano

Prestahnukur volcano Data:

shield volcano (subglacial) 1390 m (4,560 ft) (?)
SW Iceland, 64.60°N / 20.58°W
Current status: (probably) extinct (0 of 5)
Typical eruption style: effusive (lava flows).
Eruptions from Prestahnukur: none during historic times, last eruption radiocarbon-dated at 7550 BC +-500 years

Prestahnukur volcano Background:
The massive subglacial Prestahnukur volcano at the SW end of the Langjökull icecap has associated rift zones to the north and SW that have erupted during 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.
Iceland Volcano..

Iceland Volcano: Grímsnes volcano

Iceland Volcano: Grímsnes volcano

Grímsnes volcano Data:

crater rows 214 m (702 ft)
Iceland, 64.03°N / -20.87°W
Current status: dormant (1 of 5)
Typical eruption style: effusive (lava flows).
Eruptions from Grímsnes volcano: none during historic times. Grímsnes is a relatively small volcanic system located SE of Thingvallavatn lake east of an en echelon group of volcanic fields extending across the Reykjanes Peninsula.

Grímsnes volcano Background:
Grímsnes lava flows cover 54 sq km and were erupted from a group of 11 fissures that produced a series of NE-SW-trending crater rows. The eruptions of the basaltic Grímsnes lavas were restricted to a relatively short interval between about 6500 and 5500 years ago.
Iceland Volcano

Iceland Volcano: Hengill volcano

Iceland Volcano: Hengill volcano

Hengill volcano Data:

crater rows 803 m (2,634 ft)
SW Iceland, 64.18°N / 21.33°W
Current status: dormant (1 of 5)
Typical eruption style: effusive (lava flows).
Eruptions from Hengill: none confirmed during historic times. The Hengill volcanic system, cutting through Thingvallavatn lake, consists of a series of NE-SW-trending fissure vents, crater rows, and small shield volcanoes occupying a strongly faulted graben.

Hengill volcano Background:
Hengill is the easternmost of a series of four closely spaced basaltic fissure systems that cut diagonally across the Reykjanes Peninsula and lies at the triple junction of the Reykjanes Peninsula volcanic zone, the Western volcanic zone, and the South Iceland seismic zone. Postglacial lava flows surface much of the volcanic system. The latest eruption was radiocarbon dated about 1900 years before present. An eruption in the Hellisheidi area once thought to have occurred around 1000 AD at the time of a meeting of the Icelandic parliament at Thingvellir is now known to have occurred at a vent about 5 km away in the Brennisteinsfjöll volcanic system. Geothermally heated greenhouses, hot springs, and geysers are found at the Hveragerdi thermal area.
Iceland Volcano...

iceland-volcano-brennisteinsfjoll.

Iceland Volcano : Brennisteinsfjöll volcano

Iceland Volcano : Brennisteinsfjöll volcano

Brennisteinsfjöll volcano Data:

crater rows 626 m (2,054 ft)
Iceland, 63.92°N / -21.83°W
Current status: dormant (1 of 5)
Typical eruption style: effusive (lava flows).
Eruptions from Brennisteinsfjöll: 1000(?), 1188(?), 1200(?), 1341. The Brennisteinsfjöll volcanic system, located east of Kleifarvatn lake, consists of a series of NE-SW-trending crater rows and small shield volcanoes.

Brennisteinsfjöll volcano Background:
Postglacial and historical basaltic lavas cover a wide area. An eruption in 1000 AD was dated by its occurrence at the time of a meeting of the Icelandic outdoor parliament at Thingvellier. The most recent eruption at Brennisteinsfjöll took place in the 14th century.
Iceland Volcano...

iceland-volcano-krisuvik-volcano.