Hrómundartindur

Field of Hrómundartindur behind Hveragerði

Hut in the field of Hrómundartindur

The volcano Hrómundartindur located in southwest Iceland in the municipality of Grímsnes above Grafningur. The volcano is located between the lake and the place Þingvallavatn Hveragerði. It reaches a height of 561 m.

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The volcanic system of Hrómundartindur

Connection with Hengill

It has long been attributed to him the Hengill system, but now it has been found that he obviously has its own magma chamber. It is a central volcano with its own volcano system.

Eruption history

Hengill and Hrómundartindur incurred during cold phases under glaciers of the Ice Age. Both broke out in the Holocene.

Hrómundartindur produced thereby both basic ( pillow ) lavas and andesitic rocks.

The belonging to the same system cinder cone Tjarnarhnjúkur last erupted about 9,000 years ago. He produced some fields of basaltic pahoehoe lavas, clogged the drain of a small glacial lake, a predecessor of today's lake Þingvallavatn.

High temperature areas

High-temperature areas are located at its foot and partly on its slopes, as well as the neighboring mountain Tjarnarhnúkur. The central hot source area is called Ölkelduháls and lies at its foot on the plateau Hellisheiði. But the sources of Klambragil valley belong to this system.

Hengill triple junction

The active volcanic zone in the west of Iceland here makes a bend, wherein the volcanic systems of Brennisteinsfjöll still belong to the WO- direction. Hengill already to the SW-NE - oriented chain of volcanoes At the same time here is the active rift zone and pushes on the southern trans- forming zone with Hekla and Mýrdalsjökull enough in an easterly direction to the eastern volcanic zone, is often shaken by earthquakes and is crossed by very many columns.

In the southeast the Grensdalurvulkansystem adjoins that of Hrómundartindur.

The area around the Hrómundartindur with the adjacent volcano Hengill systems and Grensdalur is subject to constant changes, but it is directly on the rift zone of the Mid-Atlantic Ridge.

This was seen clearly in recent years to bulges in the system that emerged after 1994 and especially in 2000 and. Against the strong earthquake in the summer of 2008, a series of earthquakes that still persisted in a greatly reduced force in April 2009

Hiking in the area

There are many marked trails on these mountains and around some of the small lakes Kattartjörn.