Comparing Geldingadalir and Surtsey Eruptions

Noticing the similarities between the two eruptions of Geldingadalir and Surtsey, we should also be aware of the differences. Let us have a look at the maps:

Geldingadalir eruption for comparison with Surtsey eruption.
Surtsey eruption for comparison with Geldingadalir eruption.

Identical squares with the length of 23 km have been inserted for orientation. The similarities can partly be explained referring to the central axis of the Westman Islands Polygon on one hand and the division line between the N-American Tectonic Plate and the Eurasian Tectonic Plate on the Reykjanes Peninsula on the other hand.

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