The Krakatau, located on the islands of Java and Sumatra, in Indonesia, exploded with surprising violence on the 27th of August 1883. Reports at the time mentioned that for a day, rocks, lava and large columns of smoke were projected to high altitudes, followed by deafening explosions that could be heard thousands of kilometers away. Several tsunamis ensued, with waves that could reach up to 40 meters in height and could carry anything in their path, causing the death of over 36 000 people. The impact this eruption had on the global climate was felt in the years that followed, especially a decrease in the temperature. When everything went still, in the place where the mighty volcano used to stand was now only a crater. However, activity has been increasing and a new mount now stands 800 m tall, growing at a rate of 5 m a year.
Judging by this evolution, when the current volcano reaches the size of the former (about 2000 m tall) and has a considerable critic mass, an explosion will surely happen. The process is similar to a balloon that is being filled with air until it is unable to hold it any longer. In this case, the air is lava. At least this is the opinion of scientists, who don't, however, agree on a date on which it will take place. They also agree that a new explosion could be even more violent than the 1883 one, underlining that the volcano has been fairly active lately.
One of the scientists that have been following Krakatau’s evolution is Marco Fulle. As an experienced astronomer and a volcanologist, he has photographed comets and volcanoes for several years. In the last few months Fulle has captured these impressive pictures of the awakening of a sleeping giant...
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