I'm not usually much impressed by content on IFL Science, but their post about this topic seems quite good: http://www.iflscience.com/environment/four-icelands

I'm not usually much impressed by content on IFL Science, but their post about this topic seems quite good: http://www.iflscience.com/environment/four-icelands-volcanoes-priming-erupt/all/ http://www.iflscience.com/environment/four-icelands-volcanoe...