Torfajökull (Icelandic for "Torfi's glacier"; ) is a rhyolitic stratovolcano, caldera (central volcano) and complex of subglacial volcanoes, located north of Mýrdalsjökull and south of Þórisvatn Lake, Iceland. Torfajökull last erupted in 1477 and consists of the largest area of silicic extrusive rocks in Iceland. The volcano's eruption around 870, a combined bimodal eruption (rhyolite-basalt) with additional engagement of the Bárðarbunga-Veiðivötn volcanic system, has left a thin layer of easily recognized mixed tephra all over Iceland (Landnámslag). This layer makes it possible to determine the exact dates of many archeological finds by so called tephrochronology, like in the Reykjavík 871±2 museum. Naming According to legend, the glacier is named for Torfi Jónsson í Klofa, an Icelandic historical figure. When the plague arrived in Iceland in 1493, Torfi fled with his family and his belongings into the highlands and settled in a valley surrounded by the glacier. According to another legend, the glacier is named for Torfi, a farm worker at a nearby farm. Torfi eloped with the farmer's daughter and fled to the glacier. See also List of volcanoes in Iceland Volcanism of Iceland References External links Torfajökull in the Catalogue of Icelandic Volcanoes Tuyas of Iceland Pleistocene stratovolcanoes Holocene stratovolcanoes Active volcanoes VEI-3 volcanoes Southern Region (Iceland) East Volcanic Zone of Iceland Glaciers of Iceland Subglacial volcanoes of Iceland Volcanic systems of Iceland Central volcanoes of Iceland Calderas of Iceland