Title: | Jarðskjálftar á Íslandi |
Author: | |
Date: | 1976 |
Language: | Icelandic |
Scope: | 110-133 |
University/Institute: | Háskóli Íslands University of Iceland |
School: | Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) |
Department: | Raunvísindastofnun (HÍ) Science Institute (UI) |
Series: | Náttúrufræðingurinn;45(2) |
ISSN: | 0028-0550 |
Subject: | Jarðskjálftar; Ísland; Gosbelti; Jarðfræði; Jarðeðlisfræði; Jarðskjálftarannsóknir; Seismic belts; Iceland; Historical earthquakes; South Iceland earthquakes; Earthquake intensity; Damaging earthquakes |
URI: | https://hdl.handle.net/20.500.11815/1323 |
Abstract:Larger earthquakes in Iceland occur mainly in two zones, a narrow E-W
trending zone in S-Iceland and 75 km broad zone off the northern coast.
Destruction and ground displacement due to the earthquake sequences of J784
(Ms 7.5-8), 1896 Mg 7-7.5) and 1912 (Ms 7) are described.
Considerable seismic activity is observed within the active volcanic zones. The
earthquakes occur mainly as swarms of magnitude less than Ms 5. Volcanic
eruptions are generally preceded by swarms of earthquakes. Examples of such
premonitory earthquakes are given for the eruption of Heimaey 1973, Katla
1625, Lakagígar 1783, Mývatn Fires 1724-1729, Askja and Sveinagjá 1875.
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