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Mechanisms of Earthquakes in Iceland

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Synonyms

Bookshelf faulting; Divergent plate boundaries; Hreppar microplate; Seismicity of Iceland; South Iceland Seismic Zone; Tjörnes fracture zone; Transform zones; Volcanic earthquakes

Introduction

Most of the seismicity of Iceland is due to processes related to the mid-Atlantic plate boundary that crosses the country (Fig. 1). These processes include transform faulting, rifting, dike injection, inflation and deflation of magma chambers, cooling of magma bodies, and volume changes of geothermal fluids (Einarsson 1986, 1991, 2008; Sigmundsson 2006).

Fig. 1
figure 1

Epicenters in Iceland and along the Mid-Atlantic Ridge system 1964–2004. Data are from the catalogs of the International Seismological Centre. Bathymetry is from General Bathymetric Chart of the Oceans (Modified from Sólnes et al. (2013) with help from Gunnar B. Guðmundsson at the Icelandic Meteorological Office)

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References

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Einarsson, P. (2014). Mechanisms of Earthquakes in Iceland. In: Beer, M., Kougioumtzoglou, I., Patelli, E., Au, IK. (eds) Encyclopedia of Earthquake Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36197-5_298-1

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