Jökull - 01.12.1990, Side 169

activity on the Loki Ridge. Finnur Pálsson assisted
us by drawing computer plots of the maps. Guðrún
Larsen, Kristján Sæmundsson and Sveinn Jakobsson
made useful critique of our geological interpretations.
Þóra Ellen Þórhallsdóttirmade suggestions which im-
proved the English text.
references
Askelsson, Jóhannes. 1936. On the last eruptions in
Vatnajökull. Soc. Sci. Isl. 18, Reykjavík, 68 pp.
Askelsson, Jóhannes. 1959. Skeiðarárjökulhlaupið
og umbrotin í Grímsvötnum 1945. Jökull 9, 22-
29.
Bjömsson, Helgi. 1974. Explanation of jökulhlaups
from Grímsvötn, Vatnajökull, Iceland. Jökull 24,
1-26.
Bjömsson, Helgi. 1975. Subglacial water reservoirs,
jökulhlaups and volcanic eruptions. Jökull, 25:
1-14.
Bjömsson, Helgi. 1977. The cause of jökulhlaups in
the Skaftá river, Vatnajökull. Jökull 27, 71-78.
Bjömsson, Helgi. 1983. A natural calorimeter at
Grímsvötn: an indicator of volcanic and geother-
mal activity. Jökull 33, 13-18.
Bjömsson, Helgi. 1988. Hydrology of ice caps in
volcanic regions. Soc. Sci. Isl. 45, Reykjavík,
139 pp.
Bjömsson, Helgi. (in prep). The drainage of ice and
water from westem and northern Vatnajökull.
Bjömsson, Helgi, and Magnús T. Guðmundsson. (in
preparation). Variations in the heat flow from the
subglacial Grímsvötn volcano, Iceland.
Björnsson, Sigurður. 1977. Jökulhlaupið á Breiða-
merkursandi árið 1927. Jökull 27,94-95.
Brandsdóttir, Bryndís. 1984. Seismic activity in
Vatnajökull 1900 - 1982 with special reference
to Skeiðarárhlaups, Skaftárhlaups and Vatnajök-
ull eruptions. Jökull 34, 141-150.
Einarsson, Páll. 1978. S-wave shadows in the Krafla
caldera in NE-Iceland, evidence for a magma
chamber in the crust. Bull. Volc. 41, 1-9.
Einarsson, Páll. 1986. Seismicity along the eastern
margin of the North American Plate. In: Vogt,
P.R., and Tucholke, B.E., eds., The Geology of
North America, Vol. M, The Westem North At-
lantic Region: Geological Society of America, p.
99-116.
Einarsson, Páll. 1987. Compilation of earthquake
fault plane solutions in the North Atlantic and
Arctic Oceans. In: Recent Plate Movements and
Deformation, ed. K. Kasahara, Geodynamics Se-
ries, Vol. 20, Am. Geophys. Union, p. 47-62.
Einarsson, Páll. 1988. First motion pattern of P-
waves from 7 North Atlantic earthquakes, 1980-
1984. Science Institute,UniversityofIceland, re-
port RH-13-88,10 pp.
Einarsson, Páll. 1991. Earthquakes and present - day
tectonism in Iceland. Tectonophysics 189, 261-
279.
Einarsson, Páll, and Sveinbjörn Bjömsson. 1980.
Earthquakes in Iceland. Jökull 29, 37-43.
Einarsson, Páll, og Sveinbjöm Björnsson. 1987. Jarð-
skjálftamælingar á Raunvísindastofnun Háskól-
ans. In: I hlutarins eðli (Festschrift for Þorbjöm
Sigurgeirsson), ed. Þorsteinn I. Sigfússon, Menn-
ingarsjóður, Reykjavík, p. 251-278.
Einarsson, Páll, and Bryndís Brandsdóttir. 1984.
Seismic activity preceding and during the 1983
volcanic eruption in Grímsvötn, Iceland. Jökull
34, 13-23.
Einarsson, Páll, and Kristján Sæmundsson. 1987.
Earthquake epicenters 1982-1985 and volcanic
systems in Iceland. Map accompanying / hlut-
arins eðli (Festschrift for Þorbjöm Sigurgeirs-
son), ed. Þorsteinn I. Sigfússon, Menningar-
sjóður, Reykjavík.
Elíasson, Sigurvin. 1977. Molar um Jökulsárhlaup
og Asbyrgi. NáttúrufrœðingurinnAl, 160-174.
Friedman, Jules D., Richard S. Williams, jr., Sigurður
Þórarinsson, and Guðmundur Pálmason: In-
frared emission from Kverkfjöll subglacial vol-
canic and geothermal area, Iceland. Jökull 22,27-
43.
Gebrande, H., H. Miller, and Páll Einarsson. 1980.
Seismic structure of Iceland along RRISP- Profile
I. J. Geophys. 47, 239-249.
JÖKULL,No. 40, 1990 165