Hekla
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Hekla, or Hecla, is an active stratovolcano in the south of Iceland with a height of 1,491 m. Hekla is one of Iceland's most active volcanoes; over 20 eruptions have occurred in and around the volcano
Hekla and Þjórsá
Illustration from Olaus Magnus's Historia de gentibus septentrionalibus, book 2, 1555
Tephra horizons in south-central Iceland. The thick and light coloured layer at center of the photo is rhyolitic tephra from Hekla.
Hekla beyond a snowy field of volcanic ash
Stratovolcano
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A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are charact
Hekla
…Hekla (Icelandic pronunciation: ), or Hecla, is an active stratovolcano in the south of Iceland with a height of 1,491 m (4,892 ft). Hekla is one of Iceland's most active volcanoes; over 20 eruptions have occurred in and…
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Snow-like blanket of Mount Pinatubo's ashfall deposits in a parking lot on Clark Air Base (15 June 1991)