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Shishaldin reported activity





Event Name : Shishaldin 1775

This is a questionable event.

Start: 1775 Observed
Stop: 1775 Observed

"Smoke": BibCard BibCard
Lava flow: BibCard
Tephrafall: BibCard
Lahar, debris-flow, or mudflow: BibCard
Tephra plume: BibCard BibCard
Eruption Type:Explosive
Duration: 3 years BibCard

Description: From Veniaminov (1840, translated by Lydia T. Black and R.H. Geoghegan, 1984): "About 1795, with the wind from the SW, the range on the SW end of Unimak blew up with a terrible thunder and an eruption of ash [pepel] or soot [sazha], white in color, in such a great quantity that, for several hours in the middle of the day, not only in the neighboring villages on Aliaksa but even on Unga, there was absolute darkness. The eternal ice, lying on that range, slid down along both sides together with a large quantity of water and burned rocks of different sizes. The last stopped about half-way along and formed a trench or a black belt visible even now. There are still signs in place where the water flows and where the ice, which had slid down the mountain, rested for several years (the vegetation has only just begun to appear there)."

From Grewingk (1850, translated 2003 by Fritz Jaensch): "From Zaikov's report (Pallas, N.B. III, p. 281) we receive the first detailed news about Unimak, on which island he sojourned from 1775 to 1778. 'The western promontory is rocky on both sides, and steep; and the shoreline is sandy, precipitous, and full of sandbars. The middle of the island is mountainous; and there is a volcano (Shishaldin), which is frequently on fire.'"

And Grewingk (1850, translated 2003 by Fritz Jaensch) continues "Cook (Vol. II, p. 117, [Eng. ed., London, 1784, vol. 2, p. 416]) sighted this volcano on the twenty-first of June 1778, and fixed its location at 54 degrees, 48 minutes N. Lat. And 164 degrees 15 minutes W. Long. He believed, however, that it still belonged to the mainland. 'Over this [Halibut Island, Sanak] and the adjoining islands we could see the main land covered with snow; but particularly, some hills, whose elevated tops were seen, towering above the clouds, to a most stupendous height. The most South Westerly of these hills was discovered to have a volcano, which continually threw up vast columns of black smoke.' This obviously was Shishaldin Mountain of Unimak."

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Page modified: March 30, 2017 14:36
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