There have been two types of volcanic eruptions for some time now – explosive or effusive. An explosive eruption is marked by a violent and explosive eruption, such as the Mount St. Helens eruption of 1980. An effusive eruption is marked by the outpouring of lava onto the ground. However, new research has uncovered a previously undocumented type of eruption
[updated content; Solar Flare, see below] At three times the diameter of the Earth — 25, 000 miles/40,000 km wide and 50,000miles / 80,000 km long — the newest sunspot to make its appearance on our sun’s surface is the largest seen in years, according to NASA experts. The sunspot is part of Active Region
Apart from the major disruption in flight traffic and the economy, the Icelandic volcano eruption promises in the short-term to disrupt upper atmospheric circulation patterns and temperatures, with an additional impact due to sulfuric acid “nucleation” and subsequent acid rain. But the medium to long-term impacts of continuous, or increasing, volcanic eruptions is a matter of on-going scientific debate.