Yesterday (09-July-2017) there was a minor earthquake swarm in Katla volcano. Deepest of the earthquakes in this swarm had the depth of 28,9 km, the most shallow of the earthquakes that happened had a depth of 21,1 km. At this depth it is only magma that can create earthquakes.
Since the earthquakes yesterday Katla volcano remains quiet with no oblivious sign of increase in earthquake activity. It is worth noting that it doesn’t seem that Katla volcano goes over 100 years between eruptions. If an eruption does not happen this year it might happen next year. There is a lack of data, but research on time between eruptions suggests that maximum quiet period between eruptions is 100 years. I don’t know if there is any error margin on that number, there might well be one.
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