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Earth of fire

Actualité volcanique, Article de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié par Bernard Duyck
Publié dans : #Actualités volcaniques
The two new cracks in Holuhraun - photo laraomars / RUV

The two new cracks in Holuhraun - photo laraomars / RUV

According to the Civil Protection and the University of Iceland , new eruptive fissures have opened between the first crack and Dyngjujökull glacier, around 7am UTC. on September 5.

An overview
by scientists has found that two cracks are developed in the graben overlying the intrusion. The lava fountains are substantially smaller than those characterizing the former fisssure, also still active. Steam and large quantities of SO2 are released into the atmosphere. The cauldron in the Dyngjujökull seems to have deepened since the last observation.

Holuhraun - 09/05/2014 - new cracks on the right, the former on the left degassing more strongly - photo Snorri B. Jónsson. RUV

Holuhraun - 09/05/2014 - new cracks on the right, the former on the left degassing more strongly - photo Snorri B. Jónsson. RUV

Dyngjujökull - Cauldron dug into the glacier - photo almannavarnir during a 09/05/2014 flight.

Dyngjujökull - Cauldron dug into the glacier - photo almannavarnir during a 09/05/2014 flight.

 Radar Image of the cauldron - doc.via RUV 09/05/2014

Radar Image of the cauldron - doc.via RUV 09/05/2014

The measurements show a slight increase in conductivity in Jökulsá á Fjöllum, the main drainage of the glacier, possibly related to rainwater drains into the river through the recent lava (J.A. Stevenson).

On seismicity, two earthquakes of 5.3 and M4,4 were detected around midnight, September 5, in the caldera of Bárðarbunga.

Extension of the lava field with dates - Doc. University of Iceland

Extension of the lava field with dates - Doc. University of Iceland

Holuhraun - the original crack is more active than the two new - photo mbl.is / FOR rni Sæberg

Holuhraun - the original crack is more active than the two new - photo mbl.is / FOR rni Sæberg

Displacements of the GPS stations 09.05.2014 - The opening of a rift is confirmed by movements in the opposite sense at the contact Holuhraun / Dyngjujökull. - doc.IMO

Displacements of the GPS stations 09.05.2014 - The opening of a rift is confirmed by movements in the opposite sense at the contact Holuhraun / Dyngjujökull. - doc.IMO

Sources :

IMO - University of Iceland - RUV - mbl.is - Iceland Review

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