Hekla 3 eruption [SEP] point in time
Hekla 3 eruption
The Hekla 3 eruption (H-3) circa 1000 BC is considered the most severe eruption of Hekla during the Holocene. It threw about 7.3 km of volcanic rock into the atmosphere, placing its Volcanic Explosivity Index (VEI) at 5. This would have cooled temperatures in the Northern Hemisphere for several years afterwards.
An eighteen-year span of global cooling that is recorded in Irish bog oaks has been attributed to H-3. The eruption is detectable in Greenland ice-cores, the bristlecone pine sequence
general correlation: the longer Hekla goes dormant, the larger and more catastrophic its opening eruption will be. The most recent eruption was on 26 February 2000.
Eruption history Prehistoric eruptions.
One of the largest Holocene eruptions in Iceland was the Hekla 3 (or H) eruption circa 1000 BC, which threw about 7.3 km of volcanic rock into the atmosphere, placing its Volcanic Explosivity Index (VEI) at 5. This would have cooled temperatures in the northern parts of the globe for a few years afterwards. Traces