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.