A VOLCANO so powerful an eruption could affect the UK is about the blow, experts have warned. Researchers claim The Hekla volcano in southern Iceland, nicknamed the Gateway to Hell, could blow "at any minute" after pressure readings from inside soared in intensity. It used to erupt regularly, but has been quiet for 16 years, leading geologists to fear it is building up for a mega outburst. The magma mount will put lives at risk when she blows, according to the University of Iceland. Páll Einarsson, professor at University of Iceland, who has studied the peak, said: "Hekla is ready at any moment. "Hekla is a dangerous volcano. We could be looking at a major disaster when the next eruption begins if we are not careful." He also said it was a very popular tourist destination, with groups who visit the mount during "most of the summer" now potentially at risk. Worryingly, he said that pressure readings within the volcano were already higher than they were when it most recently erupted in