[SatinDoll]

Yes, a linear vent eruption.

I referred to it as a tablet eruption but then my geologic nomenclature is rather old fashioned and not as up to date as cripplecreek’s.

[cripplecreek]

They appear to be very common in Iceland. It looks like they happen in Hawaii as well but under a different set of conditions.

[cripplecreek]

Here they’re called fissure eruptions.

http://www.geology.sdsu.edu/how_volcanoes_work/Fissure.html