Permanent, seasonal, and episodic seismic sources around Vatnajökull, Iceland from the analysis of correlograms

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Sylvain Nowé
Thomas Lecocq
Corentin Caudron
Kristín Jónsdóttir
Frank Pattyn


In this study, we locate and characterise the main seismic noise sources in the region of the Vatnajökull icecap (Iceland). Vatnajökull is the largest Icelandic icecap, covering several active volcanoes. The seismic context is very complex, with glacial and volcanic events occurring simultaneously and the classification between the two can become cumbersome. Using seismic interferometry on continuous seismic data (2011–2019), we calculate the propagation velocities and locate the main seismic sources by using hyperbolicas geometry and a grid-search method. We identify and characterise permanent oceanic sources, seasonal glacial-related sources, and episodic volcanic sources. These results give a better understanding of the background seismic noise sources in this region and could allow the identification of seismic sources associated with potentially threatening events in real-time.


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How to Cite
Nowé, S., Lecocq, T., Caudron , C. ., Jónsdóttir, K. and Pattyn , F. (2021) “Permanent, seasonal, and episodic seismic sources around Vatnajökull, Iceland from the analysis of correlograms”, Volcanica, 4(2), pp. 135–147. doi: 10.30909/vol.04.02.135147.
Author Biographies

Thomas Lecocq, Royal Observatory of Belgium, Avenue circulaire 3, 1180 Brussels, Belgium

Department of seismology and gravimetry

Kristín Jónsdóttir, Icelandic Meteorological Office, IS-150 Reykjavík, Iceland

Warning – Forecasting department

Frank Pattyn , Université Libre de Bruxelles, B-1050 Brussels, Belgium

Department "Laboratoire de Glaciologie"

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