Russ Steele writes:
I wrote about the possibility that Katla is Iceland might become active again in this decade here, based on a swarm of earth quakes. Now those quakes are getting more intense.
Every time Katla has erupted in human history the human race has suffered. Now, with our dependence on air travel to transport food and people for business and tourism the impact will be significant in the short term. Long term the shortening of the growing season will impact the global food supply. The northern grain growing regions in the US, Canada and Russia will be unable to produce the surpluses that have fed hungry mouths around the world. Some regions will shift southward, but will not be enough to feed the hungry.
Now the Katla quakes are becoming more intense, over shorter intervals. More details here.
A possible small eruption under the Mýrdalsjökull ice cap in south Iceland has produced a surge of glacial meltwater, a jökulhlaup, which has caused flooding and cut the main road through the area. A bridge has been swept away, and local evacuations are apparently taking place.
Last summer, nearly a year ago today, I wrote:
Katla volcano in iceland sees 14 earthquakes in 48 hours. This may mean nothing, or it may be a prelude to an eruption. Either way it bears watching.
The difference between then and now is that the grouping of the epicenters has more focus. I’m not sure if that means anything, but it is worth noting.
Last year I also drew attention to this statement from Iceland’s president:
Katla Volcano usually erupts every century, says Iceland’s President Olafur Grimsson. and the last eruption was in 1918. “The time for Katla to erupt is coming close.”
“I don’t say if, but I say when Katla will erupt,” Grimsson says. “We have been waiting for that eruption for several years.”