Rocks weighing thousands of tons rolled down due to the fury of the Eyjafjallajokull volcano in Iceland, and the vast night seemed to be torn apart by giant flashes of light above the crater.

The Eyjafjallajokull volcano began to awaken in March, spewing dust, lava and hot gas that worried the whole world. While many people can only observe its eruption through television and newspapers, Ragnar Th. Sigurdsson, a British photographer, flew close to the volcano to take pictures. Among the tens of thousands of photos Sigurdsson took were many scenes that the public had never seen. Those photos are collected in a book about the Eyjafjallajokull volcano that has just been published.

Ash, lava and lightning appeared on the top of Eyjafjallajokull volcano one day in March. The crater is 4 km long and 2.9 km wide. From March 3 to March 5, nearly 3,000 earthquakes occurred at the center of the volcano.

The aurora borealis appeared while the Eyjafjallajokull volcano erupted.

The dust cloud rose to a height of 15 km while lava with temperatures up to 1,000 degrees Celsius erupted from the crater.

A giant rock rolled down the foot of the mountain due to the eruption of the Eyjafjallajokull volcano. It is estimated that its mass is about 1,000 tons.

Flashes of light appeared in the dust cloud emitted by the volcano.

Lava erupted violently.

Both the sky and the ground were tinged gray with ash from the volcano.

Lightning flashes stand out in the night.

Volcano photo taken from an airplane.

Dust from the volcano caused hundreds of thousands of flights around the world to be canceled in April.