Grimsvötn volcano (Iceland): activity updates and news

Updated: Jan 18, 2022 05:41 GMT - Refresh

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Grimsvotn volcano (Iceland) - Smithsonian / USGS Weekly Volcanic Activity Report for 5 January-11 January 2022 (Continuing Activity)

Wed, 5 Jan 2022, 15:41

The Icelandic Meteorological Office (IMO) lowered the Aviation Color Code for Grímsvötn to Green on 12 January, noting that seismicity had returned to normal levels with a few earthquakes detected over the previous few weeks. The caldera had deepened during the jökulhlaup (glacial outburst flood) that had occurred during November and December 2021, though IMO noted that it was difficult to characterize the current status of the caldera and the level of the geothermal activity. Read all

Grímsvötn volcano

Caldera 1725 m (5,659 ft)
Iceland, 64.42°N / -17.33°W
Current status: restless (2 out of 5)

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Grímsvötn volcano eruptions:
ca. 1310, 1332, 1341, 1354(?), ca. 1370, ca. 1390, ca. 1430, ca. 1450, ca. 1470, ca. 1490, ca. 1510, ca. 1530, 1598, 1603, 1619, 1629, 1638, 1659, 1681, 1684-85, 1706, 1716, 1725, 1753, 1768, 1774, 1783-85 (Laki fissure eruption: the largest historically known effusive eruption), 1794(?), 1796(?), 1816, 1823, 1838, 1854, 1861(?), 1867, 1873, 1883, 1887-89, 1891-92, 1897, 1902-04, 1922, 1933, 1934, 1934, 1938, 1939(?), 1941(?), 1945, 1948(?), 1954, 1972(?), 1983, 1984(?), 1996, 1998, 2004 (Nov.), 2011 (21-26 May)
Typical eruption style:
Effusive, explosive magma-water/ice reaction.
Produces notorious and frequent floods of melt-water bursts from the glacier (jökulhlaups).

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