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A volcanic eruption (火山喷发)in Iceland has sent ash across northern Europe. Airlines (航空公司)have stopped or changed the flights across the Atlantic Ocean, leavinghundreds of passengers stuck in airports.
Grirmsvom(一火山名)is one of the largest and most active volcanoes in Europe. What makes Grimsvom different is that it lies under a huge glacier(冰川)of ice up to 12 meters thick. The hot volcano heats up the ice above it, which then forms a layer(层)of water between the glacier and the volcano This layer of water puts pressure on the volcano, keeping it stable, As the water flows out from under the glacier, the pressure lifts. The lava(岩浆)from the volcano then comes up to the surface. This is exactly what happened today.