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Originally posted by RUDDD
View of the eruption column from the North, this was before it began to spread out laterally and reach the upper limits currently placed at 15km by the VAAC
"The ash in Eyjafjallajokull was persistent or unremitting and fine-grained," Einarsson said. "The ash in Grimsvotn is more coarse and not as likely to cause danger as it falls to the ground faster and doesn't stay as long in the air as in the Eyjafjallajokull eruption."
Whether widespread disruption occurs again will depend on how long the eruption lasts, how high the ash plume rises and which way the wind blows.
The volcano also erupted in 1998, 1996 and 1993. The eruptions have lasted between a day and several weeks.