464 
1661 
1681 
1685 
1693 
1706 
1716 
1717 
1721 
1766 
1774 
1783 
Th. Thoroddsen—Volcanie History of Iceland. 
Earthquakes during the summer. 
Eruption from ShkeiSararjokull. ‘i 
Eruption in the neighbourhood of Grimsvom. 2 
Sixteenth eruption trom Hekla, February 13th, left off in August. Four craters 
were active. The ashes fell all over the country, and were carried even over 
to Norway. ‘The pumice masses drifted all the way to Faro. 
Severe earthquakes in Olves and Foi, April 1st and 20th. Twenty-four manors 
fell in and many cottages. 
Eruption in the neighbourhood of Grimsvotn. 
Eruption from Kverkfjoll, September 17th. Thingeyjarsy'sla suffered great 
damage from the ashes, which also fell in LyjafjarSarsy'sla and Mulasy'sia. 
Tenth eruption from Katia ; began May 11th with excessive floods and glacier- 
slips ; the ice-blocks grounded in depths of from 70-80 fathoms 3 (Danish) miles 
out atsea. A grass-grown neck of land was swept away, and in its stead was 
left a polished slab of rock 6750 square fathoms im extent. The ashes were 
borne westward, and fell so thick the first day that at homesteads 25 geo- 
graphical miles distant from the crater the light was obscured to such an 
extent as to make reading of print impossible. 
Eruption from Krafla, May 17th, great masses of ashes and pumice issued from 
a crater on its western side called V7ti (Hell) ; onthe eastern shores of My/vatn 
the layer of the ashes was 1, ell thick. 
Eruption from Leirhnikr, January 11th, accompanied by severe earthquakes. 
Eruption from Bjarnarflag, April 19th; violent earthquakes on the 8th of 
September. Eruption in SheiSardrjékull. 
7 Eruption from Orefajékull, August 3rd, great floods from the glacier, which 
destroyed homesteads and killed cattle ; the eruption abated May 25th, 1728. At 
the same time great disturbances were observed in SkeiSararjokull, and on 
August 21st an eruption took place from Leirhnikr. 
Eruption from Leirhnukr, April 18th, preceded by severe earthquakes, the 
lava flowed almost close down to the parsonage of Reyfijahl’S ; the same day 
an erupting crater opened in Hvossadalr, while another eruption also took place 
in Bjarnarflag. April 20th great masses of lava welled out in the neighbourhood 
of ReykjahlUSarsel, from a crater situate on the eastern slope of Dalfjall. 
December 18th Leirhnwtkr was in eruption and this same year volcanic action 
was going on in the lava wastes round Hekla. 
Eruption from Leirhnvkr, January 30th, which continued through the year ; 
huge masses of lava flowed from the volcano in the direction of Reyljahhi’s, 
which stead was destroyed, together with three others. Only the church of 
ReykjahtiS was lett standing. 
Earthquake in the 767. 
Earthquakes throughout O/ves and Borgarfjord; the hot sprig of Skrifla 
diminished and grew colder than before. 
Earthquake in Arnessy'sla ; 12 farmsteads were damaged and one church fell in. 
Eruption in the neighbourhood of S¢Szokull, accompanied by great glacier 
floods ; the river Djripd (Deep river) rose by 200 feet, devastating the surround- 
ing lands ; -the district of Skaptartunga was completely covered with ashes. 
Eruption in the lava fields to the westward of Hekla which lasted for three days. 
“Severe earthquakes for six days, September 10-15, in the North-country, 
especially about Hvisavik, during which twenty-one homesteads were de- 
stroyed. October 17th a formidable eruption began from Katla—the eleventh 
—which went on till August, 1756. Glacier-floods and ashes created vast 
devastation. The land all about Shaptafelissy'sla was covered by a layer of 
ashes from { to 1 ell in thickness, and fifty homesteads were destroyed. 
Seventeenth eruption trom Hekla, accompanied by severe earthquakes to the 
S.W. of it all the way out to Reyhkjanes. 
Eruption im the wildernesses about SkeiSararjokull. . 
Lighth eruption off Reykjanes. Great eruptions about Varmdrdalr along Skaptd 
began in June, and after some intermission were repeated towards the end of 
July about the sources of Hveryisfijét. These eruptions were of a magnitude 
unparallelled on the earth in historic times. The lava which they produced 
exceeds, on the authority of Sir Charles Lyell, in cubic contents the mass of 
Mont Blanc. These eruptions were followed by famine and great loss of life— 
