This page contains the results of your search. It is divided into two sections. The first contains information about the eruption and the second part contains details about the source references and the date and time of the search. Click on the volcanic system name to retrieve more information.
| Source: | Hekla Volcanic System |
|---|---|
| Eruption site: | Hekla |
| VEI: | 5 |
| Lava volume: | n/a |
| Tephra volume: | 2.000 km3 |
| Start Date: | October 1104 AD |
| End: | n/a |
This eruption is known as both Hekla 1104 and Hekla 1. This was the first eruption of Hekla in historical times (ie since about AD 900). This is by far the largest eruption of Hekla in historical times with about 2 km3 of tephra (freshly fallen) being produced. This is the second biggest eruption in Iceland during historical times, after the eruption of Oraefajokull in AD 1362. When converted to dense rock gives a value of about 0.5 km3. This is also the most acidic of all historical eruptions of Hekla. No known lava was produced. Farms up to 70 km away were destroyed by the eruption, although the full extent of damage in outlying areas is difficult to access. The trend of the main axis of deposition is to the north Iceland.
The data on this page is from the following source(s). If you use this data please acknowledge the source of the data.
Larsen, G., and Thorarinsson, S. (1977) H4 and other acidic Hekla tephra layers. Jokull 27, 28-46
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. (1967) The eruption of Hekla in historical times. A tephrochronological study. The eruption of Hekla 1947-1948 I, 1-183
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This Tephrabase search was made on 6/8/2025 at 14:25:30 local time, Edinburgh, Scotland, UK.