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The Hekla 1970 eruption from the Hekla Volcanic System

Summary

The volume of tephra is calculated as freshly fallen. This eruption was silicic, although there are no known deposits outside of Iceland. This was a small eruption, but significant because it heralded the beginning of a series of eruptions with 10 year intervals. The tephra layer contained large amounts of fluorine (2000 ppm), which resulted in the death of thousands of animals to the north-west of Hekla. The main axis of tephra fallout was to the north-north west of Hekla. The tephra is dark brown in colour.

References

The data on this page is from the following source(s). If you use this data please acknowledge the source of the data.

Simkin, T., Siebert, L., Blong, R.J. and Russell, J. (1994) Volcanoes of the world : a regional directory, gazetteer, and chronology of volcanism during the last 10,000 years  Geoscience Press, Tucson, with the Smithsonian Institution,349.

Thorarinsson, S. (1970) Hekla  Almenna Bokafelagid,,1-59.

Data Sources

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This Tephrabase search was made on 6/8/2025 at 14:29:06 local time, Edinburgh, Scotland, UK.