of a few hours; and their bulk was so enormous, that they covered the sea for seven miles from the shore, and remained aground in one hundred fathoms. The denudation on the land was upon a grand scale. All superficial accumulations were swept away, and the bed-rock was exposed. It was described, in graphic language, how all irregularities and depressions were obliterated, and a smooth surface of several miles area was laid bare, and that this area had the appearance of having been "planed by a plane."[1]
Admitting the possibility of exaggeration in the narrative as
- ↑ The account of Professor Steenstrup was, I believe, copied many years ago, when he was travelling in Iceland, from an original Icelandic MS. Professor Paijkull, of Upsala, was favoured by Professor Steenstrup with a sight of his MS., and printed some extracts from it in his work En Sommer i Island, Copenhagen, 1867. The following paragraphs, which refer to this possibly unique occurrence, are taken from the English translation of that work:—
"At the commencement of the eruption a stream burst forth, consisting principally of half-melted snow and large masses of ice, which tumbled about in the sea like floating islands; while, simultaneously, another stream issued in a south-easterly direction, and inflicted great injury on the land. The first of these two streams filled the sea with ice to such an extent that even from the highest mountains it was impossible to see open water till it was broken up by the action of the waves. It then drifted westward as far as Reykjanes, and up into the rivers along the coast, so that large icebergs were left standing in the bed of the river in the Ölfusá. The greater portion, however, of the ice that had been washed down from the glacier remained fixed aground at a distance of about seven miles from land, in a hundred fathoms water. It formed, moreover, a high ridge over the land from the sea as far as Hafrsey, a fjeld on Myrdalssandr. ... A stream of similar terrific character broke out on the following day, and submerged the masses of ice that had been previously discharged into the sea, as far as the eye could reach. Further, it made its way through Kerlingar valley, and dammed up the stream there. The deluge, or, more properly speaking, the ice, carried, moreover, immense masses of rock with it; and in the vicinity of Hjorleifshofdi, a mountain on Myrdalssandr, a rock of twenty fathoms in height, entirely disappeared; not to speak of other instances. One can form some idea of the altitude of this barrier of ice, when it is mentioned that from Höfdabrekka farm, which lies high up on a fjeld of the same name, one could not see Hjörleifshofdi opposite, which is a fell 640 feet in height; but in order to do so, had to clamber up a mountain slope east of Höfdabrekka, 1200 feet high. The distance between Höfdabrekka and Hjörleifshofdi is one (Danish) geographical mile, or the fifteenth part of a degree."
